How do I make Matomo faster?

By default, Matomo (Piwik) reports are processed when you request them in the User Interface. Please see How to setup auto archiving of your reports every night? to automate the generation of Matomo reports. See also How long does the Matomo archiving process? for expected speed for high traffic websites.

If you are running Matomo analytics for a high traffic websites (or hundreds of them), see our guide Optimize Matomo server for speed.

How do I check in real-time whether my goal conversions are triggered correctly on my website?

The visitor log will always show the result of a goal in real time, you will need to find out the Visitor ID to correlate this with the goal. This can be easily found in the HTTP requests.

In your target web page start the web console and view the network tab. Filter the results to only show Matomo requests. The piwik.php request contains your Visitor ID in the URL parameters.

This ID will match with a visitor in your visitor log.

Viewing this user’s visit history you will be able to see if they have successfully converted a goal.

To find the visitor quicky when you only have the Visitor ID, you can create a Segment so you will only see this user’s visits:

  • Click Add new segment from the Segmentation menu.
  • Then select Visitor ID from the first dropdown menu, then the is operator.
  • Copy and paste the Visitor ID established earlier in the last field
  • Save and apply the segmentation.
  • Then open the Visitor Log to see all the visits and interactions by this Visitor (pageviews, clicks, downloads, events, forms, videos, goals…).

Example segment to find a specific Visitor ID:

How do I exclude traffic from an IP or a range of IP addresses?

To exclude all traffic from a given IP or IP range, log in Matomo (Piwik) as the Super User. Click on Administration > Websites > Settings. You will find the option to specify “Global list of Excluded IPs”. Specify one IP address per line. Each Matomo admin user can also specify the list of IPs or IP ranges to exclude for specific websites.

You can define a given IP address, or IP ranges (132.4.3.* or 143.2.*.* for example) to be excluded from being tracked on all websites. You may also use the CIDR notation for IP addresses for example:, or 2001:db8::/32.

When you exclude visits from these IP addresses, it will only apply to new visits going forward. Historical visits from these IP addresses will not be deleted.

How do I exclude URL query parameters from the URLs tracked, and from Pages reports?

It is common that websites use URLs query parameters or session ID parameters that are not relevant to data analysis (unique ID, meaningless parameter).

You can easily ignore a number of parameters from the URLs, and prevent them from appearing in the “Behavior > Pages” report. Login as the Super User, go to Administration > Manage Websites > Global list of Query URL parameters to exclude field.

Each Matomo (Piwik) admin user can also exclude query parameters for specific websites, by entering them in the Excluded Parameters list for this website, in Administration > Websites.

For example take this URL path: hello.html?module=peace&vid=476tgkg. If you configure Matomo to exclude the URL parameter vid from Page Urls then the URL will be tracked as: hello.html?module=peace.

To exclude multiple parameters, specify each parameter on a new line, for example to exclude two parameters:


When you specify one or several parameters to exclude from your URLs, note that it will only affect data going forward. (URL parameters will not be removed from your historical data and reports)

How do I export the Raw data from Matomo (users, actions, clicks)?

We design the Matomo Analytics (formerly Piwik Analytics) platform in a way that all the data is yours and can be easily exported. We offer many APIs which let you get all of your data, and one API in particular which lets you get all of the RAW data.

The API you want to use is Live.getLastVisitsDetails and is listed here:

You can use this API to download the data for a given website (or all websites), for given day / week / month / year (or all-time), and you can even specify a Custom Segment to filter out the data and return only the users that match a particular criteria.

If there is any data that you cannot export via our standard APIs, you may want to consider the Custom Reports premium feature which lets you create any report based on your requirements in seconds. It is our mission to help you keep full control of your data!

See also: How do I make the Matomo Analytics (formerly Piwik Analytics) data available to my data warehouse?

How do I set the time zone for my reports?

Matomo (Piwik) lets you specify the time zone to use for each website in the Websites admin panel. Click on Administration > Websites > Edit. Note: changing the website’s timezone will only affect Reports going forward.

You can also change the global timezone, so that any new website you create in the future will use your specified global timezone. Go to Administration > Measurables > Settings, and under “Default Time zone for new websites” you can specify the timezone.

Note: Matomo internally stores all times in UTC which is a software engineering best practise.

How do I specify the currency used in the Goals revenue reports?

By default, Matomo (Piwik) reports revenues in $ US dollars.

To change the default currency used by Matomo, login as Super User, then click on ‘Administration’, then ‘Websites’. Below the list of websites, you will find a section ‘Default Currency for new websites’. There you can specify the currency to use by default in Matomo for new websites.

To change the currency of a given website, go to ‘Administration’ then click on ‘Websites’ then click ‘Edit’ next to a website. In the column ‘Currency’ you can choose a new currency for this website.

How do I specify which websites to load by default in Matomo?

Login to Matomo (Piwik), in the top menu click on “Administration” and in “Personal > Settings”: you may select the website to load by default under “Report to load by default”.

Each user can specify which websites should be loaded in Matomo. Alternatively, users can choose to load the All websites dashboard, which gives an overview of the status and evolution of all websites available to the user.

How do I specify the date used by default in Matomo reports?

By default, Matomo (Piwik) will load reports for “yesterday”. Each Matomo user can specify, in their “User settings” admin panel, the date to load by default in Matomo reports: “Today”, “Current week”, “Current month”, or “Last 7 days”, “Last 30 days”, “Yesterday”, etc.

How do I add more than the default 5 custom variables?

By default Matomo (Piwik) provides five custom variables. You may configure Matomo to track more custom variables. New custom variable slots will be created in both the ‘visit’ scope and ‘page’ scope.

First you need to be able to connect to the server running Matomo over SSH, so you can type commands to the Matomo console. To increase the custom variables slots from 5 to 10, type in the terminal:

$ cd /path/to/piwik
$ ./console customvariables:info

  Your Matomo is configured for 5 custom variables. 

$ ./console customvariables:set-max-custom-variables 10

You can now track up to 10 custom variables in the visit and page scope. Enjoy!

Note: this console command will update your Matomo Database schema and will add columns in several tables in order to track more custom variables.

How do I control the categories tree structure in the Page URLs and Page titles reports?

By default, Matomo (Piwik) will report your Page URLs and Page titles in ‘categories’, automatically constructed based on the slash character / as a delimiter.
For example, a Page with a URL “” will be reported under the category “about” in the Page URLs report. When you click on it it will open the pages inside this category, and show the stats for the subpage “contact”. This feature is very useful because it helps visualize which sections of your website have the most traffic, rather than having all your page URLs at the same level.

This grouping feature is also very useful with Page Titles. You can use it for tracking custom flash events (“game / clickStart”, “game / registerNewUser”), video events (“videos/ bestOf2011 / start”, “videos/ bestOf2011 / pause”), simply organize your pages into a easier to analyse structure, etc.

In the Matomo Javascript tracking code, you can specify custom page titles by calling piwikTracker.setDocumentTitle() (Learn more about the JS Tracking API). For example, to track a custom page view when a user clicked on a button in your web app, you could write

piwikTracker.setDocumentTitle("ajax/click view button");

You can also customize the delimiter to use for splitting your page URLs and Page titles into categories (or disable the feature by setting the delimiter to a character not in use in your Page titles). Edit your config/config.ini.php file, and set the following:

action_title_category_delimiter = ::

You can then define your custom page names as follows:

piwikTracker.setDocumentTitle("Products :: Gardening :: Seeds id=123");

and your pages and categories will be grouped according to the :: delimiter.

How do I add more than the default 5 custom dimensions?

By default Matomo (Piwik) provides five Custom Dimensions slots. You may configure Matomo to track more Custom Dimensions. New Custom Dimension slots will be created in both the ‘visit’ scope and ‘action’ scope.

First you need to be able to connect to the server running Matomo over SSH, so you can type commands to the Matomo console. To add 10 new Custom Dimensions slots from 5 to 15, type in the terminal:

$ cd /path/to/piwik    
$ ./console customdimensions:add-custom-dimension --scope=visit --count=10

You can now track up to 15 custom dimensions in the visit scope. Enjoy!

You can create at least 50 dimensions in each scope (100 in total), and possibly even a few more (there is usually a hard limit from the database which will be hit when you create between 100 and 200 dimensions).

This console command customdimensions:add-custom-dimension updates your Matomo Database schema and adds new columns in several tables in order to track more custom dimensions.

How do I track impressions and clicks and CTR of image banners and/or internal banner ads or text ads?

Matomo (Piwik) provides a powerful and easy to use functionality that is designed to help you measure how many times a piece of Content was seen by your users, and how many times it was clicked on. We call this feature Content Tracking. Content Tracking reports how often a specific ad or a banner was displayed on any of your pages and how often a visitor actually interacted with them. We call these two parts content impression and content interaction. This feature is not only limited to ads or banners. You can use it for any kind of content. Learn more about Content Tracking.

Content Tracking reports will let you see:
– how many times a given ad was viewed by users (when it became visible in the browser)
– how many times a given ad was clicked
– the ratio of clicks / views, ie. how likely is it that a user clicks on the ad after seeing it.

How does this work? Once a page has loaded we log a content impression for each content block (ad block) within that page which of each consists of a content name (eg. “Sunset Poster”), a content piece (“product743.jpg” or “Buy Product 1 now”) and a content target (http://the-banner-link-url). As soon as a visitor clicks on a content block a content interaction is logged, allowing you to analyze the ratio of content impressions to content interactions.

By default. Content tracking does not track the location of the banner of the page. We don’t report whether the ad was displayed at the top of the bottom. To learn even more about how your page is overall used, and your banners overall clicked, check out the Heatmap reports. You can create a Heatmap for a given page, and then you can see visually how many people scroll down to a particular ad, how many moved their mouse over the ad, how many clicked on a particular ad, etc.

After the top 500 or top 1000 rows, Matomo automatically groups pages, keywords, websites, etc. under the label “Others”; How do I force Matomo to not limit the data?

For performance reasons, Matomo (Piwik) will by default only archive the first top 500 pages, top 1000 keywords, top 1000 websites, Custom Variables, etc. Matomo will then sum all the remaining pages, keywords, etc. under the label “Others”. If you wish to archive all the data, or simply archive more than the current rows limit, you can override these values in the configuration file config/config.ini.php. For example, to limit all table to 5000 entries, add the following in config/config.ini.php:

; maximum number of rows for any of the Referers tables (keywords, search engines, campaigns, etc.), and Custom variables names
datatable_archiving_maximum_rows_referrers = 5000
; maximum number of rows for any of the Referers subtable (search engines by keyword, keyword by campaign, etc.), and Custom variables values
datatable_archiving_maximum_rows_subtable_referrers = 5000
; maximum number of rows for any of the Actions tables (pages, downloads, outlinks)
datatable_archiving_maximum_rows_actions = 5000
; maximum number of rows for pages in categories (sub pages, when clicking on the + for a page category)
datatable_archiving_maximum_rows_subtable_actions = 5000
; maximum number of rows for any of the Events tables (Categories, Actions, Names)
datatable_archiving_maximum_rows_events = 500
; maximum number of rows for sub-tables of the Events tables (eg. for the subtables Categories>Actions or Categories>Names).
datatable_archiving_maximum_rows_subtable_events = 100
; maximum number of rows for all individual Custom Dimensions reports, and for Custom Variables names report
datatable_archiving_maximum_rows_custom_variables = 5000
; maximum number of rows for the Custom Dimensions subtables (list of all Page URLs per dimension value), and for Custom Variables values reports
datatable_archiving_maximum_rows_subtable_custom_variables = 5000
; maximum number of rows for the Site Search table
 datatable_archiving_maximum_rows_site_search = 5000

If you are using the Custom Reports premium feature, you can also adjust these settings:

datatable_archiving_maximum_rows_custom_reports = 1000
datatable_archiving_maximum_rows_subtable_custom_reports = 500

If you are using the Media Analytics premium feature, you can also adjust these settings:

datatable_archiving_maximum_rows_media = 1000
datatable_archiving_maximum_rows_subtable_media = 500

After doing this change, if you want your old reports to be re-processed with this new number of rows, see FAQ on how to re-process reports.

How do I measure and get reports for my page sections / categories / mini-sites / languages?

Sometimes your website or app includes multiple “sections” (or page “categories” or “mini-site”), and you want to track and report them separately from each other. For example your website is translated in multiple languages, or when your app is serving multiple markets, and you want to see reports for each language or market (“section”).

There are two solution you can choose from:

1) Track all “sections” in the same website in Matomo using a custom dimension and use segments to get reports for each section.
2) Track each “section” in its own separate website in Matomo​​ and use Roll-up to get aggregated reports across all sections/websites.

Please find more information about two solutions below.​​

Solution 1) One website, one custom dimension, multiple segments

​In this solution we will track the “section” of your websites in a new Custom Dimension, and then create Segments to see reports for each of the categories you need a report for.

First, you will need to create a Custom Dimension of Action scope called for example “Section”. Secondly​, you will need to track this dimension value in your website. ​For example you can use JavaScript and call the setCustomDimension function. ​Or if there is a URL parameter which has your “category” value, then you can configure your dimension to use this URL parameter as the dimension value. Learn how to create and track a custom dimension in the User guide.

Once the custom dimension is tracked you will be able to view the list of all values in the report. See example in the online demo.

Finally, you want to see the detailed report for each section of your website. To be able to view any Matomo report for a “section”, we will create a segment in Matomo: Visits where custom dimension 'Section' is 'Private'. Then you can apply the segment and view your dashboard, graphs, reports for visitors who viewed pages belonging to this particular section of your website. Learn more about creating segments in the User guide.

When you then create a segment for each of your “Sections” then you will get detailed reports just a click away.

Solution 2) Separate websites and Roll-Up

Alternatively it may sometimes be easier to create separate websites in Matomo for each of your “sections”. Creating separate websites in Matomo has some advantages:

  • You can easily grant people read or write access to the report about a particular “section” without giving them access to data for all “sections”.
  • You don’t need to create Dimensions nor Segments to view reports since they are already separated in different websites.

This solution is also recommend if each of your mini-sites is on a different sub-domain.

To track the data, first you will need to create new websites in Matomo. Then in the JavaScript tracking code, the line containing _paq.push(['setSiteId', 'ID_SITE_HERE']); will need to be referencing the correct website ID so you need a it of logic to set ID_SITE_HERE depending on which “section” your visitors are currently browsing.

Once the data is tracked, you can use Roll-Up reporting feature to aggregate your websites together in a Roll-Up and view all reports across all websites. Learn more in the Roll-Up Reporting user guide.

How do I track how many users open and read my newsletter emails (using a pixel / beacon)?

With Matomo (Piwik) you can add a small image beacon (pixel) in your newsletter emails, so you can track how many people actually read and open the newsletter email.

To track how many people open and read your newsletters, you can add the following HTML image code in your newsletter:

<img src="" style="border:0;” alt="" />

Once you add this code in your newsletters, when your users open and read the newsletter, it will add a new “Page title” entry for “Email opened” in your Behavior > Page titles report.
You will also be able to see this information in the Visitor Log.

In this example, replace:

  • by your Matomo URL
  • YOUR_PIWIK_WEBSITE_ID by your Website ID (learn more)

When you use the HTML code above, the following information will also be recorded in Matomo:

  • &url=%2Femail-opened%2Fnewsletter_XYZ records a pageview with the URL set to to “/email-opened/newsletter_XYZ” in Behavior > Page URLs report.
  • &action_name=Email%20opened records a Page Title set to “Email opened” in Behavior > Page titles report.
  • &_rcn=internal%20email%20name records a visit from a Campaign and sets the campaign name to “internal email name” in Referrers > Campaigns report.
  • &_rck=newsletter_XYZ will also set the campaign keyword to “newsletter_XYZ” (set it to the name of this particular email newsletter for example “Summer-deals-2017-August”) in Referrers > Campaigns report.
  • when the people receiving your emails are all on the same internal networks and using a similar email client, you will find that the Unique Users/Unique Visitors KPI metric value will be wrong. To solve this issue you want to append the parameter: &cid= which should be set to a uniquely generated string of exactly 16 hexadecimal characters (containing only characters 01234567890abcdefABCDEF). This will set the Visitor ID to a unique string for each email recipient ensuring Matomo tracks them correctly.

See also: When tracking visitors using an image beacon instead of the JavaScript tracker, what are the differences?

How do I make the Matomo Analytics RAW data available to my data warehouse?

If you need to access Matomo RAW data and import it in your data warehouse or BI tool, there are two options: HTTP API data export, or direct database export.

1) Export all data using our HTTP API

Using our HTTP API you can export all your individual users data and all users actions (visits, pages, clicks, events, downloads, custom dimensions, user location, user information, and more). The API used to export all your Raw data is called Live.getLastVisitsDetails and lets you export all the user and clickstream data for a given website and a given date. Optionally a Custom Segment when you need to export specific segment of users). For example if you wanted to export the full dataset for yesterday, you would use the following API call:

  • Replace the domain name by your Matomo Analytics (formerly Piwik Analytics) URL
  • In &token_auth=anonymous, replace anonymous by the token_auth of your API user. We recommend you create a new user in Matomo, for example called ‘api-data-warehouse-export’ and grant this user a ‘view’ permission on the website you’re exporting to data warehouse, and then use this user’s token_auth in your API calls.
  • The &filter_limit=100 parameter makes sure that all the data for this day will be returned. Use &filter_limit=-1 to return all rows.
  • The data can be exported in JSON, XML, CSV, and more. Replace &formal=xml by your favorite data format.
  • This API could be called once a day and all output data can be imported in your data warehouse.

Important note about high traffic Matomo servers

if you export a lot of data, for example more than 10,000 visits and their associated actions and clickstream, then the HTTP request above may take a long time or even time out (depending on your server and PHP settings). You may get errors such as Maximum execution time of 0 seconds exceeded. Up to a certain limit you can increase the PHP memory limit, but it is not recommended to increase above 4G and sometimes 4G is not enough to return thousands or dozen thousands of visitors and all their actions.

Therefore when you export a lot of data, we recommend that you only export 10,000 at a time and use our paging &filter_offset= feature. Here is how this works: to export the first 10,000 records, instead of filter_limit=-1 you would write filter_limit=10000&filter_offset=0. Then, to export the next dataset, you would write filter_limit=10000&filter_offset=10000. Then to export the next dataset, you will write filter_limit=10000&filter_offset=20000. You repeat this until there is no more result in the dataset.

2) Direct read-only access to the MySQL database

Another solution is to directly access the Matomo Analytics (formerly Piwik Analytics) MySQL database where all your data is stored. This solution should be faster to import a lot of data, especially when your data warehouse supports data import from MySQL. We recommend to create a Read-only mysql user who can only accces the Matomo database and read data from it (not allowed to write). You will find more information about the Matomo database structure in our developer guide. Note that the database schema may change in the future.

If you need more information about Data warehousing best practises, please contact the Matomo professional support team.

How do I view Matomo application logs?

Matomo (Piwik) application logs are messages that are written by Matomo.

You can view logs by installing the LogViewer plugin. The plugin can be installed via the Matomo Marketplace with just a few clicks in your Matomo installation. As a Super User simply go to the Administration and select Marketplace in the left menu. There you will find the plugin and can install it with just one click.

This plugin will be useful if you experience any problem and want to troubleshoot your Matomo installation, for example when some tracking requests are not processed correctly.

LogViewer plugin

Configuring logging in Matomo

By default Matomo won’t show anything in the LogViewer plugin as logs are written only to screen. In order to actually view logs you need to enable either logging to file or to the database. The database log writer is recommended when you use more than one server for your Matomo installation.

You can read about this in detail in the FAQ article How do I enable logging in Matomo.

In most cases it is enough to add the following lines to your config/config.ini.php file:

log_writers[] = file

The Matomo application log is located at piwik/tmp/logs/matomo.log.

If you do not see any log messages afterwards this might be just because there were no warnings or errors yet. You can increase the log level by adding the following line to the [log] section to see if it works in general:

log_level = DEBUG

Enabling logging for Matomo Tracker

The Matomo Tracker API (piwik.php) needs an additional configuration in order to actually log messages. See the documentation page about enabling Debug logging in the piwik.php tracker

Using the LogViewer plugin

Once logging is configured you can view the logged messages as a Super User by going to the Administration and selecting LogViewer from the Diagnostic section.

You can search for any log messages, filter by log level, switch between the file and database writer and export log messages. Handy is the possibility to narrow down the displayed messages by clicking on a column. For example you can click on a RequestId and see all messages that were logged during the same request.

How do I force the reports to be re-processed from the logs?

In some rare occasions it may be useful to force Matomo (Piwik) to re-process the reports from the original logs. By default, reports will only be processed once (preferably with an automatic cronjob setup to run every hour) and then archived in the database. When you visit the Matomo UI for a previous day (or week, month, etc), all you see is pre-processed data read directly from these archive tables.

Warning: to reprocess reports for specific dates, you need access to the historical visitor Log Data. Make sure you are not using the feature ‘Delete old logs‘ on your Matomo server. If you have deleted some of your old logs, Do Not Proceed! Some of your data could be lost forever.

1) Invalidate the existing historical aggregate reports

To force Matomo to re-process your reports you can use one of the following solutions:

  • (Recommended) Invalidate historical reports by calling a Console command, or using the API, or using a user interface, to tell Matomo to invalidate and re-process the past reports.

  • or, you could edit your config/config.ini.php file, and set (when you are done, do not forget to set these values back to 0):

    always_archive_data_day=1 ; force archiving of all daily reports
    always_archive_data_period=1 ; force archiving for all period reports (week, month, year)
  • or to reprocess reports for a specific day, or specific period, you can delete the two Mysql tables matomo_archive_* for the specific month containing the dates to re-process. To delete the tables, you can use a tool such as phpMyAdmin which is usually provided by your web host.
  • or to reprocess archiving for all reports for all dates, you will have to delete all matomo_archive_* tables in the Matomo Mysql Database. To delete report data for one full year including monthly reports, you may have to delete up to 24 tables (12 months * 2 tables).

You are almost done!

2) Re-process your reports

When you login your Matomo, Matomo will re-trigger the processing of the report data which will re-create the archive tables. This may take one second on a small website but it could take several minutes for bigger websites.

When you want to ensure that reports load fast, run the following command to pre-process your report data for all websites:

./console core:archive --force-all-websites --force-all-periods=315576000 --force-date-last-n=1000 --url=YOUR_MATOMO_URL_HERE

(this command is a little customisation of the standard core:archive cron command. To learn more about what the parameters mean, run ./console help core:archive)

Conclusion: you have re-processed your data and it should now appear as expected in your dashboard.

How do I force Matomo to use SSL (https) for improved security?

Configuring Matomo (Piwik) so that all requests are made over SSL (https://) is an easy way to improve security and keep your data safer. To ensure that logins, passwords and the token_auth are not sent in the clear, you can manually set a config file setting.

  • First of all, make sure that your Matomo server is configured so that requests to work as expected. We also recommend you use a valid SSL certificate. If you use NGINX web server, you likely need to add the following line to your nginx config: fastcgi_param HTTPS $https if_not_empty;.

  • Then install the plugin ForceSSL from the Marketplace. Learn more about how to install a plugin in Matomo.

  • Or alternatively, you can also edit your config/config.ini.php file, and add the following under the [General] section, set the following:

    force_ssl = 1

Matomo will then automatically redirect all http:// requests to route to the https:// equivalent. Learn more tips about how to secure Matomo.

If for some reasons you need to disable the “Force SSL” feature, simply remove force_ssl=1 from your config.ini.php file.

How to track error pages (404 pages) in Matomo? Which URLs are 404 and which referers lead to these pages?

Pages regularly appear and disappear on websites, other websites might link to wrong URLs on your website, etc. You can track with Matomo (Piwik) which URLs are leading to a 404, and which referer pages link to 404 on your website.

  • Setup a custom 404 page: you can easily do this if you use a CMS (for example, in wordpress, all 404 pages are loading a custom 404 template). If you don’t use a Content Management System, you can usually specify a 404 custom page in your webserver configuration file.
  • Add the Matomo tracking code in this custom 404 page. In the Javascript tracking code, add the following:

    _paq.push(['setDocumentTitle',  '404/URL = ' +  encodeURIComponent( + '/From = ' + encodeURIComponent(document.referrer)]);

before the line

  • In your Matomo report, in Behavior > Pages Titles, you will now have a new entry for the 404 pages. It will also list the full URL of the 404 pages, as well as all referers leading to this page. Enjoy!

To get advanced reporting about your 404 error pages, you may want to consider the Custom Reports premium feature which lets you create a new report for 404 error pages. It lets you analyze the 404 reports faster and gives you more insights.

How do I track visits on my intranet?

Matomo (Piwik) can track visits on your intranet website as long as Matomo itself can be accessed by people in your intranet network.

What is different between a normal website and an intranet website? When tracking visits in an intranet website, Matomo assumes that many people will possibly visit the intranet website pages using a similar configuration (For example, similar computers, similar phones, similar IP addresses), and Matomo will use first party cookies to more accurately define how a unique visitor is identified.

To make sure that all unique visitors are tracked correctly in your intranet, there are a few choices:

1) Instead of creating a “Website” in Matomo, create an “Intranet” website. Go to Administration > Measurables > Manage, and click “Add a new measurable”, and select “Intranet Website”. (if you are not seeing the ‘Intranet’ option, please make sure you use at least Matomo 3.6.1 and that the plugin ‘IntranetMeasurable’ is activated).

2) Or you may also use the ‘User ID’ feature to assign your users with a unique persistent User ID string. This will make sure your users are tracked accurately across all devices. Learn more in User ID guide.

If you have already created a website in Matomo and want to convert it to an Intranet website, you can make your website an intranet by running the following query:

UPDATE `site` SET type = 'intranet' WHERE idsite = XYZ

(Replace XYZ by the website ID you want to change to an Intranet).

How do I get accurate geolocation for people viewing my Intranet site? When many people viewing your website share the same IP address (for example because they’re connecting via a VPN or from within your intranet network), then to still track geolocation for these we recommend using this third party plugin from the Marketplace IntranetGeoIP plugin.

How do I generate fake data (generate visits, actions, conversions, etc.) in Matomo?

When you are testing Matomo (Piwik) it may be useful to generate test data. Learn how to generate test data in Matomo in this post using the VisitorGenerator plugin.

How do I accurately measure the time spent by visitors on my pages, including the time spent on the last page of their visit? (using the heart beat timer)

By default, Matomo (Piwik) will accurately track the time spent on your pages for all pages, except the last page view of the visit. By default, on the last page view of any visit, Matomo counts the “Time spent on page” as 0 second. And when your visitor views only one page in the website, the visit duration will be set to a default of 10 seconds.

-> It is possible to configure Matomo to track the time spent on the page accurately, including the last page view of each visit. Learn more about Accurately measure the time spent on each page in the JavaScript Tracking code guide.

How do I automatically login my users in Matomo when they go from my CMS to Matomo?

Some Matomo (Piwik) users automatically provide their CMS customers with Matomo statistics. If you want to provide a one-click automatic login to Matomo for your users, you can use the ‘logme’ mechanism, and pass their login & the md5 string of their password in the URL parameters:

This will securely login the user (create a cookie in their browser) and redirect to the index.php on successful login. Note that this authentication method doesn’t work for a user with Super User access.
You can also specify the URL to redirect after a successful login, if different from the default Matomo dashboard page:

You can also specify a website ID (idSite) that will be loaded by default after the redirect:

Important: we recommend to make this request over https (SSL) in order to keep the password hash secure.

Since version 3.0 Matomo does not store the password as md5 any longer. As a result there is no way to access the md5 hashed password using the API. To generate the md5 password, you need the user’s raw password and then call the md5() hash function on this raw password using your favorite programming language.

How do I customise the colors, fonts, font sizes of the Opt-out iframe so it matches my website design and styles?

As part of respecting your users privacy, we recommend to include the Matomo Opt-out iframe in your website. This lets your users easily opt-out of being tracked in your Matomo instance. When you include the opt-out ifame in your website, by default the opt-out feature will use the default browser HTML styles (display black text on white background with the default font), and unfortunately this default design does not look nice for most websites.

Luckily it is possible to customise the look and feel of the opt-out iframe on your website (available from Matomo 3.4.0). To customise the opt-out iframe, go to Matomo (Piwik) > Administration > Privacy, and navigate to the section “Matomo opt-out for your visitors”. You are able to customise the font-color, the background color, the font size and the font family. To customise the opt-iframe you can use the following URL parameters:

  • backgroundColor, a hexadecimal color string for example ffffff or ddd
  • fontColor, a hexadecimal color string for example ffffff or ddd
  • fontSize, a valid CSS font size for example 1.2em, 15pt, 15px or 50%
  • fontFamily, a string containing only letters, space, or hyphen eg. Lucida, Courier new
  • language, the language of the opt-out text, a two letter code eg. en or de (see the list of all languages or get involved)

How do I enable users to login into Matomo inside an iframe?

By default, the Matomo (Piwik) login screen will not load in iframe, as a security measure to prevent clickjacking. You can manually enable Matomo login screen to work from inside an iframe by adding the following config file setting in your config/config.ini.php:

enable_framed_pages = 1

Instead of loading the login screen in an iframe, you might want to use the logme() method to automatically log your users in Matomo remotely. To include any Matomo report or widget via an iframe, click to see this FAQ.

How do I log in to my account when I cannot verify my account using two-factor authentication because I don’t have access to my mobile device

As part of the two-factor authentication set up, you’ll need to download or copy a set of recovery codes which you can use when you lose your mobile device, or when you simply cannot access the device to generate the authentication code. Such a recovery code will let you log in to your account. If you cannot access your mobile device anymore, we recommend you set up two-factor authentication on another device as each recovery-code will only work once. As soon as you have used all recovery-codes, you won’t be able to log in anymore. If you have used a few recovery-codes, you may want to generate new recovery-codes by going to “Administration => User Settings => Show recovery codes”.

Please treat your recovery codes with the same level of security as you would your password. We recommend saving them for example in a password manager.

If you have neither access to your mobile device, nor to your recovery codes, you need to contact a user with super user access and ask them to reset your two-factor authentication for you. A user with super user access can do this by going to “Administration => Users”, and then clicking on “Edit” your user.

If you are a super user yourself and are unable to log in, you can disable two-factor authentication through the command line

$ ./console twofactorauth:disable-2fa-for-user --login=yourlogin

If you use Matomo on our Cloud, please get in touch with our support.

How do I White Label Matomo, to change the Logo, the Colors, add custom widgets, etc.

To customise your Matomo (Piwik) experience, you have a few options:

  1. Browse the Themes Marketplace and install use one of the free themes offered by the community.

  2. As a Super User, go to Matomo, click Administration, and in “Settings” you can customise the Logo displayed in Matomo, as well as customise the Favicon icon.

  3. For even more control and customisation: develop your own custom theme for Matomo

  4. To remove the Matomo branding from the application, use the White Label Analytics plugin.

Contact us for more information about offering a white labelled fully serviced Analytics platform.

How do I include Matomo reports within an Iframe?

For security reasons, including Matomo (Piwik) in an iframe first require you make small change to your config/config.ini.php file: see this FAQ.

How do I specify the URL that users should be redirected to, when they logout of Matomo?

By default when user logs out he is redirected to the Login form. In your config/config.ini.php you can add under the [General] category the option:


When the user logs out, he will be redirected to this URL instead.

How do I delete all statistics for a given website, or for all websites?

It is possible to keep all the websites information (names, defined goals, etc.) and only delete the stored analytics data. There is not currently a tool available to delete all data automatically, but you can manually delete all data for a specific website directly within the database server.

Connect to your Mysql database storing your Matomo (Piwik) data with your favorite database client (for example phpMyadmin) and do the following:

  • To delete statistics data for all websites, run the following query for each matomo_archive_* table:

    DROP TABLE matomo_archive_numeric_Y, matomo_archive_blob_Y;
  • To delete statistics data for a given website, run the following query for each matomo_archive_* table:

    DELETE FROM matomo_archive_numeric_Y, matomo_archive_blob_Y WHERE idsite = X;

The archive tables will automatically be re-created from the Visitor logs when Matomo processes your reports (assuming you do not purge your old visitor log data).

  • To delete log data for a given website, execute the following query:

    DELETE FROM matomo_log_visit WHERE idsite = X;
    DELETE FROM matomo_log_link_visit_action WHERE idsite = X; 
    DELETE FROM matomo_log_conversion WHERE idsite = X; 
    DELETE FROM matomo_log_conversion_item WHERE idsite = X;

with X replaced by the website ID you wish to reset.

The alternative solution is to use the Delete old reports and Delete old tracking data features, click to see the FAQ.

If you want to delete Visitor log data (and not Report data) then read this FAQ: How do I delete old visitors statistics for a given website and/or date?

How do I configure my Matomo server to allow cross domain requests? (CORS)

Matomo is an analytics platform that collects data (Tracking API) and reports (Analytics API) this data in interesting formats. Sometimes you want to query this data from across other domains for example using cross-domain Ajax calls (XMLHttpRequest).

By default browsers implement the same-origin policy which prevents browsers from directly requesting data from other domains. Luckily, modern web browsers allow developers to perform cross-domain requests with one trick: the server must allow cross-domain requests by responding to the request with the Access-Control-Allow-Origin header set to a value that includes the domain of the requesting code (or * to match all domains).

You can set your domain names for CORS in the Matomo GUI, the feature can be found in Administration > System > General settings


Alternatively you can set the domains in the config.ini.php file. To allow your Matomo to serve data to all domains add the following to your config file:

cors_domains[] = *

To allow Matomo to serve cross-domain requests to only and

cors_domains[] = ""
cors_domains[] = ""

Reference: Cross-origin resource sharing.

How do I migrate a particular website in Matomo to a different Matomo installation?

To move a website (and its data) to a new Matomo instance, you can use the Migration plugin.

After you migrated a website’s data from one Matomo instance to another, please remember to update the Tracking codes in your website and ensure that they reference the correct Matomo URL and the correct Website ID.

Migrating data from one Matomo to another is very helpful in several use cases:

  • When your Matomo instance includes websites from different customers and you want to move one customer’s web analytics data in its own Matomo instance. You can setup a new Matomo instance for this customer and then migrate their website’s data over to this new Matomo instance. Then you can delete their data from your Matomo instance.
  • When you currently have multiple Matomo instances running and want to consolidate them into one main Matomo instance (eg. for easier maintenance). You can migrate all your websites data from your multiple instances into your chosen main Matomo instance, by running the Migration tool on each Matomo you want to migrate. Once all your websites data from your other instances is migrated and after you have updated all Tracking codes to reference the new instance URL and website ID, you could uninstall these other Matomo instances.

How do I set some of my website directories or pages to not be tracked?

If you wish to set some specific pages or directories to not be tracked by Matomo (Piwik), we recommend that you modify the Matomo Javascript Tracking code, and replace


by a small if statement to test whether the current page must be tracked or not.
To exclude traffic for all page URLs which contain /admin or which contain user/private, write:

if (!window.location.pathname.match(/(\/admin|user\/private)/))

In this example, all URLs except the ones containing “/admin” or “user/private” will be tracked by Matomo.

If you are not using the JavaScript tracker but you are using the Server Log Analytics capability, then you can exclude particular log lines from being imported by adding the parameter --exclude-path= such as python misc/log-analytics/ --exclude-path=*/exclude/* --exclude-path=*/also-exclude/* [...]

How do I measure my single-page websites and apps with Matomo?

Single-page websites and web applications have become a standard over the last years. Getting the tracking of such websites and apps right is crucial to your success as you need to ensure the measured data is meaningful and correct. It can be challenging to accurately measure single-page applications and we have documented this process in our article: How to track single-page websites and web applications using Matomo Analytics (formerly Piwik Analytics).

How do I export data from Matomo in CSV or XML or JSON format?

To export data from Matomo, simply follow the steps below:

  1. Select the date range you want to export data for by clicking on the calendar icon.
  2. Open the report you would like to export data from.
  3. Click on the “Export this dataset in other formats” icon in the footer of the report:
  4. Choose your export format (CSV, JSON, XML, RSS, HTML), report type (Standard or Metadata report), the report row limit, and click the “Export” button to download your report data.

Alternatively you can directly call the Reporting API as documented in the Reporting API Reference.

How do I delete rows of a report and specific visits to clean-up some of the reporting data?

Sometimes you may see unwanted data in your Matomo reports. For example you may see in “Behavior > Events” some un-wanted or incorrecly named events. Or in “Acquisition > Campaigns” you may see campaigns that are not real campaigns or were incorrectly named. When this occurs and you want to clean up this data, it is possible to delete some the affected rows within your reports, by deleting the visits which created these data points in the first place. To delete specific parts of a report, follow the steps below:

  • Login to Matomo as “Super User”
  • Click on “Administration (cog icon)” on the top right of the dashboard
  • Click on “Privacy > GDPR Tools”
  • Select a website from the dropdown, which you want to delete the data from
  • Choose the appropriate condition under “Find data subjects by”. For example if you wanted to delete incorrect rows from your reports in “Acquisition > Campaigns” you would select “Campaign > Name” is “THE-INCORRECT-CAMPAIGN-NAME”
  • Click on “Find Matching Data”
  • Select the rows you want to delete
  • Click on “Delete Selected Visits”

Once you have deleted the visits which led to the incorrect data in your reports, within a few hours Matomo will automatically re-process the historical data reports. After the re-processing of reports is complete, the reports will not show the incorrect data anymore.

Note: this works only when you still have access to the RAW visits details for the time period which you wan to correct data for (ie. when you haven’t yet deleted old tracking data).

How do I restrict viewing the analytics reports to one or more whitelisted IP addresses or IP ranges?

For additional security and preventing un-authorized IP addresses from accessing Matomo (Piwik) dashboards, you can configure a set of white-listed (allowed) IP addresses. Since Matomo 3.6 you can also configure hostnames. However, please consider that any hostname will be resolved within each request. This may slightly slow down your Matomo.

IP addresses can be whitelisted by adding them under your [General] section in config/config.ini.php:

login_whitelist_ip[] =
login_whitelist_ip[] = 204.93.240.*
login_whitelist_ip[] =
login_whitelist_ip[] = 2001:db8::/48
login_whitelist_ip[] =

When configured, only users from a configured IP address can log into your Matomo. You can define one or multiple ; IPv4, IPv6, and IP ranges.

By default, if a whitelisted IP address is specified via login_whitelist_ip[] then both the reporting user interface as well as HTTP Reporting API requests will only work for these whitelisted IPs. But in some cases you need to allow all IP addresses access to your Matomo HTTP Reporting API endpoint. To allow all IP addresses to access the Matomo Reporting API, set in your config file under [General]:

login_whitelist_apply_to_reporting_api_requests = 0

When whitelisted IP addresses are configured and you try to access Matomo but your IP is not white-listed, you will see an error like this: “You cannot use this Matomo as your IP is not whitelisted”.

See also: How do I exclude traffic from an IP or a range of IP addresses?

How do I delete old visitors statistics for a given website and/or date?

Sometimes, you may need to delete some or all Visits log data for a given date, and/or a given website. For example if you have imported log files incorrectly in Matomo (Piwik) you may want to delete the invalid data that was imported.

Delete visits using the UI

As part of the GDPR Privacy features in Matomo, you can easily delete visits. Learn more in the GDPR Guide “Right to erasure”.

Delete visits using a console command

A console command lets you delete all visits log data (including Visits, Actions, Goal conversions, Ecommerce activity).

To use this console command, login to your server (using SSH) and go in the Matomo directory. Execute the following command to display the help:

./console help core:delete-logs-data

The following options are available:

  • --dates lets you delete log data with a date within this date range. Eg, 2012-01-01,2013-01-01
  • --idsite lets you delete log data belonging to the site with this ID. Comma separated list of website id. Eg, 1, 2, 3, etc. By default log data from all sites is purged.
  • --limit lets you pick the number of rows to delete at a time. The larger the number, the more time is spent deleting logs, and the less progress will be printed to the screen. (default: 1000)

For example to delete all log data for month of January 2015 on website ID 42, execute:

./console core:delete-logs-data --dates=2015-01-01,2015-01-31 --idsite=42


  • all the visits log data for the given date range and website ID will be permanently deleted.
  • this console command does not delete your archived report data but only delete the raw visits log data.

Delete visits using SQL query

Run the following SQL query to delete visits matching a certain criteria, for example here we delete all visits where the screen resolution wasn’t tracked properly in the date range 2019 May 1st-May 16th:

DELETE log_visit, log_link_visit_action, log_conversion 
FROM log_visit 
LEFT JOIN log_link_visit_action ON log_visit.idvisit = log_link_visit_action.idvisit 
LEFT JOIN log_action ON log_action.idaction = log_link_visit_action.idaction_url 
LEFT JOIN log_conversion ON log_visit.idvisit = log_conversion.idvisit 
WHERE config_resolution = 'unknown' 
AND visit_last_action_time >= '2019-05-01' 
AND visit_last_action_time <= '2019-05-16';

Related FAQs

If you want to configure Matomo to automatically purge your old data (whether visits log data, or statistics reports data), see this FAQ How do I delete historical Matomo data? (purge old logs and/or old processed reports)

If you want to delete old reports, read this FAQ: How do I delete all statistics for a given website, or for all websites?

How do I get reports for a custom date range?

Matomo (Piwik) reports on days, weeks, months and years, and you can also specify a Custom Date Range in the Calendar. Click on the calendar, then on “Date Range”. Now select on the left calendar the starting date for the range, and in the right calendar the end date of the range. Matomo will process in real time the reports for the requested date range.

In the Analytics API, you can also get reports for a custom date range. For example, to request any report for the range “Feb 15th – Feb 25th”, you would use the parameters:


How do I search within reports?

Most data table reports have a small search bar below the report. Here you can type data and press Enter key to search for this string within the report displayed above. For example, in the “Keywords” report, you can search for nature and it would return all keywords matching nature.

The search field is actually a Regular Expressions. For example, a search for nature|life would match all rows containing nature or life. All search strings containing any of the special characters from this list: . + * ? [ ] $ ( ) { } = ! | must be escaped with a back slash, eg. if you want to search for keywords containing love! you would search for love\!.

(Advanced note: to find all rows in the report that do not include a particular sub-string eg. brand, you would use the regular expression: ^((?!brand).)*$)

How do I accurately measure the same visitor across multiple domain names (cross domain linking)?

Cross domain tracking makes it possible for Matomo (Piwik) to record the same visitor on two related websites, for example an Ecommerce website and a separate shopping cart website, as a single visit.

Why is setting up cross domain needed for accurate visitor tracking across domains? Matomo uses a visitor ID to record visit data. Visitor ID values are stored in cookies on the web domain of the visit. These cookies are first party cookie and can only be accessed on the specific domain name that they were created, so other domain names cannot access these cookies and the visitor ID. So when you need to track your visitors across different domains, the visitor ID must be forwarded from one domain to the other domain using a special mechanism which we call Cross domain linking, described in detail below.

To setup accurate cross domain tracking, follow these steps:

  1. Configure your domain names as Alias URLs for your Matomo website. Login to Matomo and click on Administration > Websites > Manage. Edit your website, and specify all your domain names in the Alias URLs field. There must be two or more domains for cross domain to work.

  2. Generate your JavaScript tracker code. In Administration > Websites > Tracking Code, click on “Advanced: Show” link, then check the option “Enable Cross Domain linking” (If this checkbox is not clickable, please check you have defined at least two Alias URLs for this website). This will also automatically check the box “In the ‘Outlinks’ report, hide clicks to known alias URLs”.

  3. Check your generated JavaScript tracker code is valid. In the generated Tracking code in Matomo you should see the following two lines:

    _paq.push(["setDomains", ["*", "*"]]);
  4. Paste this JavaScript tracker code into all your websites to be measured across domains. In the example above, you need to add the JavaScript tracker code to and It is important to add the code to all your domains specified as Alias URLs on your Matomo website.

  5. Check that the Cross Domain linking is working correctly. Go to your and click on a link to your If Cross Domain linking is enabled and working, the URL of will contain a new parameter &pk_vid=. This pk_vid parameter will contain a string of data which includes the Visitor ID. This way the current visitor ID is forwarded to the page of the different domain. Similarly when a user clicks from to, the URL will also have this new pk_vid parameter.

You have successfully configured Cross Domain linking: congratulations!

Advanced: Handling Dynamically Generated Links

Note: the feature below is available since Matomo 3.3.1.

The cross domain detection feature works by adding the pk_vid query parameter to every link on the page when it is loaded. This is only done once, so if your webpage or webapp adds links dynamically to the page through JavaScript, they will not have this query parameter added to the URLs.

This doesn’t mean cross domain detection for such links is impossible, but it does mean you’ll have to do a little more work.

First, in your JavaScript that generates the link, get the pk_vid=... query parameter to use by calling the Matomo tracker’s getCrossDomainLinkingUrlParameter method:

var crossDomainQueryParam;
_paq.push([ function() { crossDomainQueryParam = this.getCrossDomainLinkingUrlParameter(); }]);

Then make sure this value is appended to the link URL:

// NOTE: this example uses jquery, which you may not use in your website/webapp.
//       how you add the query parameter will depend on how your link is generated.
var $linkToAdd = $('<a>my new link</a>')
    .attr('href', '' + crossDomainQueryParam);



  • You can add the query parameter to the link at any time, as long as it is added before it is clicked/visited.
  • You need to append the query parameter to all links on going to, and on all links on linking to (see the list item 5. above: “Check that the Cross Domain linking is working correctly.”).

How do I change the default email address “From:” in PDF/HTML email reports?

You can edit the default email address that will appear in the PDF reports emails by editing the configuration file config/config.ini.php, and adding under the


section, the following line:

noreply_email_address = ""

All reports by email will now be sent from “”

How do I change the default email address “From:” in password reset emails?

You can edit the default email address that will appear in the password reset emails by editing the configuration file config/config.ini.php, and adding under the


section, the following line:

login_password_recovery_email_address = ""

All password reset emails will now be sent from “”

You may also change the email sender name by setting:

login_password_recovery_email_name = Matomo

and you may also change the Reply-to email address and name:

login_password_recovery_replyto_email_address = "no-reply@{DOMAIN}"
login_password_recovery_replyto_email_name = "No-reply"

How do I send Matomo emails using SMTP server? (for example using Gmail SMTP)

You can configure Matomo to use your SMTP server as the mailserver (instead of using the default mailserver that PHP is configured to use).

To configure a SMTP server for Matomo, login as Super User, go to Administration > General Settings. Under ‘Email server settings’ you may configure the SMTP server form as follows:

  • Use SMTP server for e-mail. For Gmail SMTP use YES
  • SMTP server address. For Gmail SMTP use
  • SMTP Port. For Gmail SMTP use 465
  • Authentication method for SMTP. For Gmail SMTP use Login
  • SMTP username. For Gmail SMTP use your gmail username
  • SMTP password. For Gmail SMTP use your gmail password
  • SMTP encryption. For Gmail SMTP use SSL

Also for Gmail SMTP you need to go in to Gmail and enable the option “Allow Less Secure Apps” here. Stay assured Matomo is still secure.

All Matomo emails (Scheduled PDF Reports, Password reset confirmation, etc.) will now be sent using Gmail servers.

How do I track a Cordova / Ionic mobile app with Matomo Analytics?

To track users and behavior analytics for your Cordova / Ionic mobile apps, you simply need to embed the Matomo Tracking code (JavaScript) into your app.

Cordova/Ionic apps don’t support cookies so you can learn how this will affect the accuracy of reports and tracking.

If you have any feedback or question about tracking your Cordova / Ionic app, please leave a comment in this issue.

How do I import Google Analytics data in Matomo?

As of August 2019 we have released our Google Analytics data importer so you can import all your historical web analytics reports from GA into Matomo easily. Please review our User Guide: Google Analytics importer to get started.

How do I track a Phonegap app with Matomo?

To measure your Phonegap app with Matomo (Piwik), you can include the default JavaScript Tracking code in your app pages. Then you will need to make one change to the default Tracking code:

  • Locate the line: var u="//{$PIWIK_URL}";,
  • Replace it with the following: var u="https://{$PIWIK_URL}";. Note that http: or https: is pre-pended in front of your Matomo URL.

Congratulations: your Phonegap app users will be correctly tracked in Matomo.

How do I force Matomo to only track Page URLs that belong to my website?

For example when you have a website with a URL of “”, by default Matomo (Piwik) will track all requests for this website, even those requests for Page URLs that do not belong to “”. If you add the JavaScript tracking code on pages of “”, these requests will be tracked in your website “” in Matomo.

It is possible to configure your website in Matomo so that only requests to “” will be tracked, and all other requests ignored. Go to Administration > Websites > click “Edit”. Below the “URLs” field for your website, there is a checkbox “Only track visits and actions when the action URL starts with one of the above URLs.”. If you click this checkbox, and click “Save”, Matomo will then only track requests where the domain and the path is an exact match of one of the URLs you specified for this website. This means each valid subdomain has to be specified separately. For example when the known URLs are ‘’ and ‘’, tracking requests for ‘’ and ‘’ are ignored.

On a Windows server using IIS, the pages “Default.aspx” and “default.aspx” are tracked as different pages, but they are the same. How do I force Matomo to record them as the same page?

In your Matomo (Piwik) Javascript Tracking tag, add the following line:

_paq.push(['setCustomUrl', location.href.toLowerCase()]);

just before the line:


All your pages will now be tracked as lowercase, eg. “Default.aspx” or “DEFAULT.aspx” will be tracked as “default.aspx”.

If instead of the Javascript Tracker you are using the Log Analytics tool, then you can pass the following option to the script:


How do I track the URL Hash tags so that the #hash appears in the Page URLs report, and in Visitor Log?

By default Matomo (Piwik) will remove the #hashtag part of the URL to keep your reports clean. However it is common that you wish to record the hash tags as they may contain interesting and relevant information.

To track URL hash tags (enable/disable) login as Super User, click on “Administration” and on “Websites”.

  • In the “Global websites settings” section, below the “Page URL fragments tracking” title, you can enable Hash tags tracking by enabling the checkbox “Keep Page URL fragments when tracking Page URLs”. This setting will be applied to all websites.
  • You may also enable/disable Hashtags tracking for each individual website. In the listing of Websites, click “Edit”. In the column “URLs”, below the help notice, you will find a checkbox “Keep Page URL fragments when tracking Page URLs”, which lets you set your preference for websites.

* URL Hash Tags are only tracked when the user loaded the Page and the URL contained a hash tag. If the user loads example.html and then clicks on an anchor link to example.html#contact within this same page, Matomo will not track this click as a new page view.
* When #hashtags tracking is disabled, tracking Campaign parameters via the hash tag will still work as expected.

How do I track my RSS/Atom feed subscribers?

Until Oct 2012, Matomo (Piwik) was relying on Feedburner and the ‘Awareness API’ to provide RSS. It used to provide the following information:

  • Reach: Reach is the total number of people who have taken action — viewed or clicked — on the content in your feed.
  • Circulation: Circulation is an approximate measure of the number of users who requested your feed. This is the “Readership count”.
  • Hits: Hits are a raw measure of request traffic for your feed. This metric includes automated bots requests, visitors viewing the feed but not subscribing, etc.

Unfortunately, Feedburner now owned by Google decided to shut down permanently their API. We are now considering doing Feed Analytics using Matomo. We are looking for supporters & funding to build a simple script that will track RSS & atom feeds usage! If you would like to help fund this feature, please get in touch with the core team or post a comment on this ticket.

How do I momentarily disable Matomo User Interface and/or Matomo visitor Tracking?

Before a Database upgrade on a high traffic Matomo (Piwik) server, it is highly recommended to:

Disable Matomo Tracking

In the config/config.ini.php, add the following

record_statistics = 0

This will cause all Matomo Tracking requests to return quickly the 1*1 gif beacon, without connecting to the database or doing any processing.

Disable the Matomo User Interface and APIs

To disable the User Interface and the APIs, but still track all of your data correctly, you can enable maintenance mode.

When maintenance_mode is on, a maintenance message instead of the standard Matomo reporting interface. Your data is still tracked as expected, but the UI and the Reporting APIs are disabled.

If you run the Matomo Database Upgrade script using the shell/console command, we highly recommend to turn Matomo off while the upgrade is in process. Disabling the Matomo User Interface will prevent other users from accessing Matomo while the Database upgrade is in process.

To do so, add the following in the config file:

maintenance_mode = 1

If the line “[General]” already exists, add the line “maintenance_mode = 1” below the line “[General]”.

The following XML messages will be returned by the API:

<result><error message="Matomo is in scheduled maintenance. Please come back later. "/></result>

When the Matomo update is finished, do not forget to re-enable Visit Tracking and/or the User Interface.

And if you need to recover any missing data that wasn’t tracked during the maintenance window, learn more in about replay the traffic to Matomo and ingest logs of piwik.php requests

How do I enable “Unique Visitors” metric for Yearly reports and for Custom Date Ranges?

The “Unique Visitors” metric (as well as the “Users” metric) can be found under “Visitors > Overview” in Matomo.

If you’re using Self-hosted Matomo, by default unique visitors metric KPI is processed for days, weeks and months. If you’re using the Matomo Cloud service, unique visitors metric KPI is processed for days and weeks only.

About the “Unique Visitors” column you can see in some reports: when you view a “Day” report, you can also find a “Unique Visitors” column in most reports. For example the number of unique visitors who reached your website from a specific Website Referrer, or the number of unique visitors who use a particular device or browser. This “Unique Visitors” column is only available in “Day” reports and unfortunately it cannot be added in the Week/Month/Year/Custom Date Range reports.

But if you are looking at getting the overall “Unique Visitors” metric (or unique “Users” metric) for Years and Custom Date Ranges, this can be enabled on request. (By default for performance reasons the “Visitors > Overview > Unique Visitors / Users” metrics are disabled because the SQL query to process unique visitors/users is quite costly and take minutes to run on a High traffic Matomo server.)

Note: This document below is written in an assumption that you’re using On-Premise Matomo, if you have any question regarding availability of Unique Visitors or Unique Users metric in Matomo Cloud, please contact our Support team.

You can decide to enable or disable the unique visitors metric for specific periods by adding the following in your config/config.ini.php:

enable_processing_unique_visitors_day = 1
enable_processing_unique_visitors_week = 1
enable_processing_unique_visitors_month = 1
enable_processing_unique_visitors_year = 0
enable_processing_unique_visitors_range = 0

By default, unique visitors are processed for days, weeks and months (they are set to 1). You can for example enable yearly unique visitors by setting enable_processing_unique_visitors_year = 1

Important notes:

More information about unique visitors

The number of unique visitors across the month is processed by calculating the number of distinct visitors looking at the logs for the whole month.

When you select a date range, by default there is no unique visitors metric processed by default. And if you sum up the daily unique visitors metric you will not get the total unique visitors across the date range: this is because one visitor may visit the website on several days, and when you sum a number of uniques per day you will end up counting the same visitor multiple times. Therefore to get the number of unique visitors accurately across a date range period, you cannot sum the number of uniques for the sub-periods within and must enable this feature.

How do I setup Matomo to track multiple websites without revealing the Matomo server URL footprint which appears in the Javascript code in all websites?

By default, the Matomo (Piwik) Javascript code on all tracked websites contains the Matomo server URL. This is fine for most users, but someone (eg. a competitor) could run a script that would look at thousands or millions of websites and search for your Matomo server URL in the source code of these websites. This person could then find out all websites tracked in your Matomo instance. In some cases you might want to hide this Matomo URL completely while still tracking all websites in your Matomo instance. It is possible to do by modifying your Matomo Javascript code, and point it to a “proxy piwik.php script” instead of your Matomo server URL. This piwik.php script has to be uploaded on each of the websites tracked, and will automatically “forward” all requests to your secret Matomo server.

  • All documentation on how to install this script is at piwik/tracker-proxy.
  • Follow the instructions carefully and you will then have all your websites tracked without revealing your common Matomo URL, ensuring that nobody can find out the websites tracked by Matomo!

Note: this proxy technique also supports the Opt-out feature to exclude visits via the ignore cookie. You may also be interested in White label plugin for Matomo to provide a customised Matomo colors and product name to your clients.

How do I get the number of active unique users to my app?

Matomo (Piwik) measures your users and their interactions with your website or app. In order to accurately measure the number of known and active unique users to your app, you can use the User ID feature which will let you assign User ID string to each of your signed-in users. When this User ID is assigned then Matomo will calculate a new metric called “Users” which is the number of unique users who used your app in the selected time period. This metric is reported in Visitors > Overview report and will also appear in the VisitsSummary.get API response under nb_users metric (more info). This metric represents the number of unique active users (visitors with a known User ID). Learn more in the User ID guide. This metric is enabled only for some periods, and this can be configured (FAQ).

How do I enable third party tracking cookies, as well as the existing first party cookies?

In some cases, it might be interesting to enable third party cookies, so that a same visitor will get the same ID across all your domains and subdomains. Matomo (Piwik) doesn’t report cross sites visits at this stage, so you will benefit from using third party cookies only if you run manual queries against Matomo database. To enable 3rd party cookies, edit your config/config.ini.php and add the following lines:

use_third_party_id_cookie = 1

When this is enabled, Matomo tracker will serve a third party cookie containing an id visitor (16 chars ID). This ID will be the same for this visitor across all websites, and is stored in the database field log_visit.idvisitor.

See also: How does Matomo detect unique and returning visitors? (with User ID, Visitor ID from cookie and/or fingerprint)

How do I customize the Matomo Campaign parameters pk_campaign and pk_kwd?

By default, tracking campaigns in Matomo (Piwik) involves adding the required parameter pk_campaign (and optional parameter pk_kwd) to the URLs pointing to your website. Matomo also supports Google Analytics campaign parameters (utm_*).

Here is a comma delimited list of default parameter names that Matomo will read:

 campaign name parameters: pk_campaign, piwik_campaign, utm_campaign, utm_source, utm_medium
 campaign keyword parameters: pk_kwd, piwik_kwd, pk_keyword, utm_term

It is also possible to customize these parameter names. For example, we would like to use the parameters names “campaign” (instead of pk_campaign) and “keyword” (instead of pk_kwd). To do so, there are two required steps:

  • 1) Override the parameters in the config file. In your config/config.ini.php, add the following:


Note: you may specify a comma separated list of campaign parameter names, in case you wanted Matomo to read the campaign name or value from several possible parameters. The first non empty value will be used.

  • 2) Customize the parameters in the Javascript. In the Javascript snippet on all your pages, add the following before the trackPageView() call:

    _paq.push(['setCampaignNameKey', 'campaign']);
    _paq.push(['setCampaignKeywordKey', 'keyword']);


  • these two functions also accept an array of strings. If an array of names is specified, the first non empty campaign or keyword parameter value will be selected.

  • the Campaign parameters can be used in the query string or in the hash as well (for cleaner canonical URLs), such as: “landing.html#pk_campaign=my campaign”

  • to measure more than campaign name and keyword and up to five campaign dimensions, as well as support other standard UTM campaign tags, use the free plugin MarketingCampaignsReporting

  • to find out the true value and success of all of your marketing campaigns, we recommend using the Multi Channel Conversion Attribution premium feature.

How do I configure outgoing (forward) proxy in Matomo (eg. squid)?

It is possible to configure a forward outgoing proxy in Matomo (Piwik), so that all outbound Internet connections (eg. to check for new versions of Matomo, for SEO plugin, Plugin updates, etc.) go through the proxy. Check the FAQ Configure Outgoing proxy for more details.

How do I exclude / ignore my traffic from Matomo?

There are a few ways to tell Matomo (Piwik) to exclude and ignore your traffic:

  • Set the ‘ignore cookie’: Login in Matomo, click “Administration” in the top menu, then in the ‘Personal > Settings’ page click the link below the section ‘Exclude your visits using a cookie’. (a piwik_ignore cookie without expiry date is created on the domain of your Matomo server).
  • You may also ignore all traffic from a given IP address or IP address range or CIDR range (useful if you use one or more static IP addresses): check this faq.
  • You may also exclude all traffic where the requests have particular User Agents.
  • You may also include a Tracking Opt-out feature in your website, and use it to exclude your traffic. (a piwik_ignore cookie without expiry date is created on the domain of your Matomo server).
  • You may also force Matomo to only track visits and Page URLs where the URL belongs to your website domain (useful to ignore traffic on your test/staging/qa instances)

Note: when you exclude some traffic, it will only exclude it going forward and is not applied retroactively.

How do I use Matomo with the keyboard and which keyboard shortcuts are available?

The following keyboard shortcuts can be used to navigate the Matomo Analytics (formerly Piwik Analytics) user interface using your keyboard:

  • z for Zen mode (Zen mode lets you focus and removes all distractions from the UI)
  • s to open the Segment selector
  • w to open Website selector
  • d to open Calendar (d stands for Date)
  • f to open the Search (f stands for Find)

If you use the User Session Recording product, you can conveniently pause the video, jump a few seconds backwards or forwards, replay the video if it is finished, or play the next or previous page view for the visitor: view the keyboard shortcuts for Session Recording.

I forgot my password or username, how do I reset my password?

To reset your password in Matomo (Piwik), go to Matomo: below the login screen you will find a link “Lost your password?”. After clicking the link, enter your Matomo username or Email address, and enter your new password (twice). A link to confirm your password reset will be sent to your email address.

Note: for security reasons, it is not possible to recover passwords, but only change them. We highly recommend to use a strong password and to enable automatic SSL for login screen in your Matomo server.

See also the other FAQ: How do I change the Super User’s password when password recovery emails are not sent?

How do I share a custom dashboard template with another user?

To share a dashboard with another user:

  1. login your Matomo as a user with admin permission (or as the Super User),
  2. Open your custom dashboard you want to share, and click the “Dashboard” selector at the top (next to the segment editor),
  3. Click the “Copy dashboard to user” link,
  4. Select the username to which copy the dashboard template.

Once confirmed, the user you selected will now have access to your dashboard template and your exact set of widgets and layout.

Note that if you delete your original dashboard, it will only delete your own dashboard. The dashboards that we copied to other users will still be accessible to them.

What is the default widgets selection in a dashboard, and how do I update the default dashboard layout?

The default widgets selection is the combinations of widgets and layout which are used for all new users as their default dashboard. As long as a user hasn’t customised their dashboard already (by adding new widgets, or changing the column layouts, or modifying widget display settings), ​​then they get the default dashboard layout.

This default widgets selection and dashboard columns layout will be also used when any user creates a new dashboard, or when “Reset dashboard” feature is used.​​

How do I update the default dashboard layout?​​

To update the default dashboard ​layout, follow these steps:

  1. Login as a Super User in Matomo
  2. On any of your dashboards, customise​​ the widgets and layout until you are happy with the dashboard layout.
  3. Click on Dashboard selector, then click on “Set as default widgets selection”
  4. Click “Yes” to validate

Congratulations, your dashboard is now the default dashboard for your Matomo users.

How do I change the Super User’s password when password recovery emails are not sent?

If you use Matomo (Piwik) 3.0 or newer:

  1. Generate the secure password hash. On a linux server, run the following command:

    php -r 'echo password_hash(md5("changeMe"), PASSWORD_DEFAULT) . "\n";'
  2. Copy paste the output which will look like:

  3. Connect to your Matomo database using a tool such as phpMyAdmin or direct Mysql access.

  4. The following SQL query must be executed on your database. Replace the ‘admin’ with your Super User username.

    UPDATE `piwik_user` SET `password` = "$2y$10$FiknavjTDvUUTSMXGqgmUOfoKq2MkzlYt2/iu6cj02ZyI.40fUArC" WHERE `login` = 'admin' AND superuser_access = 1 
  5. Login to Matomo using the following credentials:

    login: admin 
    password: changeMe
  6. Click on the Administration link in the top menu, then “Personal Settings”, then change your password to a more secure one.

  7. Check you are using the most up to date version of Matomo.

If you use Matomo 2.1 or newer:

  1. Connect to your Matomo database using a tool such as phpMyAdmin or direct Mysql access.
  2. The following SQL query must be executed on your database. Replace the ‘admin’ with your Super User username. Note that it must be replaced twice in this SQL query.

    UPDATE `piwik_user` SET `password` = MD5( 'changeMe' ), `token_auth` = MD5( CONCAT('admin', password)) WHERE `login` = 'admin' AND superuser_access = 1 
  3. Login to Matomo using the following credentials:

    login: admin 
    password: changeMe
  4. Click on the username link in the top menu, then change your password to a more secure one.

  5. Check you are using the most up to date version of Matomo.

If you use Matomo older 2.0.3 or older:

  1. In your config.ini.php, change the [superuser] section to:

    login = "admin"
    password = "807ff71b3301262e222ad05e5b7c4325"
    email = ""
    salt = "ffd09b1b27ad925d2a3ca842947f391d"
  2. Login to Matomo using the following credentials:

    login: admin 
    password: ChangeMe
  3. Go to Administration -> User settings, then update your email and change the password, click Save.

  4. Update Matomo to the latest version as soon as possible!

How do I recover Super User access and give SuperUser permission to another account?

Sometimes it may happen that Super User access is lost. For example maybe there was only one Super User in Matomo and this person left on holiday, left the organization, or maybe even lost access to both their email account and their Matomo password.

When Super User access is lost, we need to grant another trusted Matomo user the Super User access. You can grant Super User permission to a given account by following the steps below:

  1. Connect to your MySQL database
  2. Run the following SQL query and replace the ‘username-here’ with the username for which to grant Super User permission:

    UPDATE `matomo_user` SET superuser_access = 1 WHERE `login` = 'username-here'
  3. Logout and login again as this username.

  4. You can now use Matomo as a Super User.

See also How do I change the Super User’s password when password recovery emails are not sent?

How do I exclude from statistics all requests with a specific User Agent?

Sometimes, there are non human (bots) that visit your website. These bots can have many purposes (such as security scanning, performance scanning, monitoring, search engine bot, spam bot, etc.). Often, you do not want these bots to be tracked in Matomo (Piwik), because you may want to focus on how humans use the website, and not bots. In this case, you can tell Matomo to exclude traffic where the User-Agent of these requests match a given string.

Some bots are not tracked by default

Some of the visits with a specific user-agent will be detected by Matomo as a bot, and won’t be tracked. You can test if a User-Agent is detected as a bot by going to your Matomo > Administration > Diagnostic > Device Detection. In the “User-Agent” text field, copy paste the user agent you want to check. You can also check online on

How do I exclude new bots from being tracked?

To exclude traffic for a particular User agent (or several user agents), go to “Administration”, click on “Websites”. Below the list of websites, you will find the option to specify “Global list of user agents to exclude”. You can enter there a list of user agents to exclude from being tracked by Matomo. Put one user agent per line. If the visitor’s user agent string contains any of the strings you specify, the visitor will be excluded from Matomo. You may also toggle the checkbox “Enable website specific user agent exclusion.” to enable this feature as a new column for each website in the Websites listing.


  • when you exclude some traffic, it will only exclude it going forward and is not applied retroactively.
  • make sure not to include a very short string (with few characters) as it could block more requests than you would expect.

See also: Exclude traffic from IP address or IP ranges

How do I find the visitor IP Addresses?

Matomo by default tracks the full IP address of all visitors to your site (you can anonymize this IP if you wish).

To view your visitor IP addresses:

  • In the User Interface, click Visitors > Visits Log. The Visits Log will display a list of all the visits during the selected calendar period, and for each visitor will display the IP address in the left.
  • you can also fetch the visit IP addresses of a given visitor, or all visitors in a selected date range, using the Matomo Analytics (formerly Piwik Analytics) Live! API.
  • you may also see the Visitor IP on the Visitor Profile report.
  • the raw data is also available in the database, in tables matomo_log_* See this FAQ.
  • you can add the Visitor IP address to Custom Reports and get for example, the list of pages by IP addresses, or any other breakdown report by Visitor IP.

Note: in all cases, the IP address will only be displayed if you are logged in Matomo: for privacy reasons, IP addresses are never displayed to the anonymous user.

How do I select IP addresses or Visitor ID directly from the database?

In the database, the IP addresses and Visitor IDs are stored in Binary form for storage efficiency. To display these values correctly you can use the following SQL query:

SELECT inet_ntoa(conv(hex(location_ip), 16, 10)) as ip, conv(hex(idvisitor), 16, 16) as visitorId FROM matomo_log_visit;

To select a specific visit if you know the idvisitor you can run this SQL query:

SELECT * FROM log_visit WHERE lower(conv(hex(idvisitor), 16, 16)) = 'a43f52349c8890af';

You may also be interested in: How do I select all users within a range of IP addresses?

How do I make Matomo report data public and viewable by anyone?

By default, report data and all information in your Matomo (Piwik) server are protected and nobody can access it. To view and access any analytics data, Matomo always asks you to sign in with a valid user account.

Some Matomo users may want to make their analytics data open and viewable by anyone. For example if you run a NGO, an open governmental service, an open source project, etc. the analytics data may be of use and interest to many people in your community. By making your Matomo data and communicating that your analytics data is public, members of your community may help you analyse the data and find interesting insights to drive you to overall do better work.

Before you decide to make your analytics data public, please consult with your colleagues and team members and make sure that everyone agrees with this decision.

If you wish to make all analytics data publicly viewable for a particular website, follow these steps:

  • Login to Matomo as an Administrator or a Super User
  • Go to Administration > Users
  • Under “Manage access”, locate the “anonymous” user
  • Choose “View” from the dropdown which is on the right to the “Username”, a pop up will appear
  • Click on “yes” to set the right to view the report for the chosen website

If you later want to remove public access access to your data, follow these steps:

  • Under “Manage access”, locate the “anonymous” user
  • Choose “No access” from the dropdown, a pop up will appear
  • Click “yes” to confirm you remove the permission for the anonymous user

Note that when an anonymous user (not signed in) visits your Matomo dashboard, we do our best to protect privacy and hide from display any Personally Identifiable Information (PII):

  • Visitor Profile feature is disabled for the anonymous user
  • the Visitor IP address and the Visitor ID are not displayed in the UI or API responses for the anonymous user

How do I select all users within a range of IP addresses?

It is possible to segment any analytics report and restrict the data to users who have a particular IP address, or where the IP address is within a given IP range.

For example if you want to restrict your reports to users who have an IP address matching 147.28.*.* then you can create a custom segment and specify the IP range:

  • If you use the Segment editor, create a segment where “Visitor IP at least” AND “Visitor IP at most”. (Note: you can only define one IP range at a time using this technique.)
  • Or to create a segment excluding all users within an IP range (for example to view your Matomo (Piwik) reports excluding all your colleagues’ requests), you would create a segment where “Visitor IP is less than” OR “Visitor IP is more than”. (Note: you can only define one IP range at a time using this technique.)
  • If you use the API, the segment definition will look as follows: &segment=visitIp%3E%3D147.28.0.0%3BvisitIp%3C%3D147.28.255.255 (this is the URL encoded value for segment visitIp>=;visitIp<=

Instead of using segments, you can also create Custom Reports. This lets you analyze and compare the data faster without having to switch between segments and you can get totally new insights into your data.

How do I tell Matomo to invalidate the past historical reports so they can be re-processed from the logs?

There are a few cases where you need to re-process some historical data directly from the raw logs.

For example a common use case is when you use the REST Tracking API to manually insert visits and actions in Matomo (Piwik) in the past (via the Tracking API parameter cdt which lets you define the date and time of the page view). If you set this date to a date in the past (for example, 3 days ago) and that Matomo has already processed the statistics reports for this date, you will not see the newly added data in Matomo.

Another example is when you create Custom Reports, or Funnels, and want to see the Custom report data and Funnel data for past dates as well. It is also useful when changing settings in the config file such as reporting more than the default 500 rows.

To tell Matomo to invalidate historical aggregated data for a website (or several), a date range (or for all past data), a segment (or for all segments), there are 3 similar techniques you can use.

1) Use the InvalidateReports plugin

You can use this free plugin by InnoCraft to invalidate your historical data directly within the user interface in just one click: get the InvalidateReports plugin. If you need to often invalidate historical data, this may be the easiest solution.

2) Use a console command

Alternatively you may use the core:invalidate-report-data console commmand:

./console core:invalidate-report-data --dates=2012-01-01,2011-10-15 --sites=1,3,5

3) Use the HTTP API

You can use the API function: CoreAdminHome.invalidateArchivedReports. For example if you imported data in the past for a few specific websites on a couple different dates you could write:


It is possible to invalidate and re-process a segmented report only, simply add to the URL query the segment parameter: &

In rare cases you may want to delete reports for a particular period (one of: day, week, month, year, range): setting the &period= parameter to the API call will force Matomo to only invalidate reports of the specified period.


  • Your historical data will be actually re-processed the next time auto archiving will run. The archiving will re-process the reports data for these particular dates and websites. You can also manually run the archive command with: ./console core:archive --force-all-websites --force-all-periods=315576000 --force-date-last-n=1000 --url=YOUR_PIWIK_URL_HERE

  • when invalidating report for a period eg. week it automatically invalidates all periods that include this one, eg. the enclosing month and year. We say the invalidation cascades up. By default, periods that are included are not invalidated (invalidating month will not re-process the days and weeks within the month). You may also force Matomo to invalidate inner periods by setting the parameter &cascadeDown=1.

How do I improve accuracy of “Time spent on page” and “Visit duration” metrics?

By default, when a user visits only one page view during a visit, Matomo (Piwik) will assume that the visitor has spent 0 second on the website. This has a few consequences:

  • when the visitor views only one page view, the “Visit duration” will be 0 second.
  • when the visitor views more than one page, then the last page view of the visit will have a “Time spent on page” of 0 second.

It is possible to configure Matomo so that it accurately measures the time spent on the last page of a visit. To better measure time spent on the page, follow these instructions in the JavaScript Tracking Client guide.

How do I remove from Matomo the links to “Professional Services” or “Matomo Consultants”?

By default, Matomo (Piwik) may display links to “Professional services”, or “Cloud-Hosted” or “Enterprise” solutions for Matomo. These links aim to help Matomo users make the most of their analytics platform, in particular help users find professional help for Matomo when they need it, as well as learning about premium functionality.

If you provide Matomo to your own clients, maybe you do not want them to see the mentions for professional services. Here is how you can remove these commercial mentions: Login as Super User, then go to Administration > Plugins, then disable the “ProfessionalServices” plugin.

How do I anonymize previously tracked raw data (visitors, visits) to remove personal data and delete database column values?

If you have tracked personal data such as the full visitor IP, you may want to anonymize this collected data, in case you do not have consent for this data or no longer have a legitimate interest (learn more in the GDPR User guide).

Login to Matomo as a Super User, and go to Administration > Privacy > Anonymize data. In the section “Anonymize previously tracked raw data” you can configure a one-off data anonymisation process to run on data you have tracked in the past.

Data anonymization cannot be undone.

To start the process:

  • choose to anonymise data for one website, or for all websites.
  • choose the start date and end date to anonymize data for
  • choose which visit or action data column to anonymize.
    • Visitor IP: If enabled, for all visits during this duration the IP will be anonymized by at least 2 bytes, for example ‘’. If you have currently configured to anonymize by 3 bytes, then this setting will be respected and all IPs will be anonymized by 3 bytes.
    • Location: the location will be re-evaluated based on the anonymized IP (at least 2 bytes of the IP will be anonymized).
    • User ID: when you enable this option, the User ID will be replaced by a pseudonym to avoid directly storing and displaying personally identifiable information such as an email address. In technical terms: given your User ID, Matomo will process the User ID pseudonym using a salted hash function. Note: replacing with a pseudonym is not the same as anonymisation. In GDPR terms: the User ID pseudonym still counts as personal data. The original User ID could still be identified if certain additional information is available (which only Matomo and your data processor has access to).
    • Visit columns: specify a list of database columns in scope visit that you want to unset. Each value for that column will be set to its default value. Please note that if the same column exists in scope ‘conversion’, then this column will be deleted as well
    • Action columns: specify a list of database columns in scope action that you want to unset. Each value for that column will be set to its default value.

The process may take a long time and will therefore not be executed right away.

The anonymization should typically start within one hour.

You will be able to follow the current state of the process in the bottom of the “Anonymize data” page.

With Matomo you can also always anonymize Visitor IP addresses, geo-location information (country, region, city), pseudo-anonymize User ID, or respect the Do-Not-Track user preference: Learn more in the Privacy User guide.

How do I integrate Matomo with my existing tools and services?

You can integrate Matomo within many different platforms: CMS, Ecommerce, Forums, Websites, Programming languages, SDK, etc. Learn more in the list of Matomo Integrations.

How do I improve the detection accuracy of Unique visitors and Returning visitors?

If you import your server logs in Matomo (Piwik), you may have noticed that in this case Matomo does not track Unique Visitors as well as when using the Javascript tracker. You can configure Matomo to improve the detection of “Returning Visitors” and unique visitors.

For example, to configure Matomo to lookup a visitor up to 30 days (30*86400 seconds) in the past, you would set:

window_look_back_for_visitor = 2592000

Note that increasing the value of this setting may have negative performance impacts on your Tracking API requests speed. By default, when trying to match visitors using a fingerprint (for example when cookies are not available), Matomo looks only in the past 30 minutes (more details). We do this for performance reasons: to keep Matomo tracking fast, even if you track hundreds of thousands or millions of unique visitors per month.

If you do not use Log Import but use JavaScript tracker or another client, you can still improve the tracking of unique visitors and unique devices. See this FAQ for more information: How do I get the number of active unique users to my app?

How do I edit my username, or the username of another user?

Unfortunately in Matomo a user cannot edit their usernames. However there is an easy solution.

Follow these steps to create a new user with the correct username:

  • Login as Super User in Matomo, or ask a Super User to follow these steps for you.
  • Go to Administration​ ​​> Users.
  • Change the email address for your current user (the one with the wrong username). For example change it to “”.
  • Create a new user with the right username.
  • Assign this new user the same permissions as the old user.
  • Save the changes.
  • Then delete the old user.

    Now you can use the new user with the correct username!

How do I display more than the default 15 websites in the website selector?

By default, the website selector displays at most 15 websites / apps. The search box displayed at the top of the website selector lets you search for your other websites. It is possible to customise this and display more websites in the selector. Edit your config/config.ini.php file and below the category [General] change the following setting (in this example to display 30 websites):

site_selector_max_sites = 30

How do I get the number of products left in the cart by each Visitor?

You may have a scenario where you may want to find the list of products left in the cart by a visitor, Matomo makes it simple with Ecommerce Analytics, User ID tracking and Custom Reports.

1) Track Ecommerce interactions

Follow our Ecommerce Analytics user guide for steps on tracking your ecommerce orders and product purchases.

2) Tracking a User ID for your customers:

Firstly in order to get the list of Customers, you need a way to generate and/or assign a unique persistent ID to each of your users, and then you need to send this User ID along with the data being collected by Matomo. Learn more in the User ID user guide.

3) Once you are tracking a User ID for your customers, create the custom report by following the steps below:

  1. Click on “Custom Reports” > “Manage Reports”
  2. Click on “Create new report”

3. Name and describe the report as desired
4. Under “Dimensions”, add “User ID”, “Number of Items in cart”

5. Under “Metrics”, add desired metrics
6. Click on “Create new report” (it will take 1 or 2 hours to process the report)
7. Choose the newly created report under “Custom Reports”

How do I change the default language of the Matomo UI for all user accounts?

By default, Matomo user interface may appear in English for all users who login to Matomo Analytics. Each user can choose their preferred language in their User Settings. But what if you want to change it for all users at once?

You can easily change and set a new default language for the Matomo user interface. To change the default language of Matomo, edit your config/config.ini.php file and add a new line under your [General] section:

default_language = de

This example sets the default language to German. Here is the list of supported language codes.

How do I create new visit on demand, so that several users using the same computer or browser are counted separately?

Matomo (Piwik) tries to guess visitors and unique visitors using several elaborate techniques (User ID, first party UUID cookie, heuristics matching user settings, using an optional third party cookie, etc.). If several people use the same system or browser, Matomo might count them all as one visitor. If you want to track a user’s request across multiple devices (laptop, smartphone, tablet) then you must use the User ID feature.

Now when it comes to creating a new visit, you would fit into one of the two categories:

1) If you are building a Single Page Application and you are using User ID…

… then you want to tell Matomo the user has logged out by calling the resetUserId JavaScript method which you should call once a user has logged out. Learn more in “When user logs out, reset User ID”

2) or if you are not using User ID: manually force a new visit

If you cannot use User ID to track unique users, it is still possible to force Matomo to create a new visit for the current request whenever you require it. To create a new visit on demand you can use the &new_visit=1 parameter in the Tracking API (see Reference docs).

If you are using the Javascript tracker, you are also able to create new visits on demand. In your website in Javascript, whenever a user logs in the system (or whenever there is a need to create a new visit) you may write the following (before the trackPageView call):

_paq.push(['appendToTrackingUrl', 'new_visit=1']); // (1) forces a new visit 
_paq.push(["deleteCookies"]); // (2) deletes existing tracking cookies to start the new visit
// the two lines must be above the call to track* function

When the page loads, a new visit will be created in Matomo.


How do I create new visit whenever a user visits my website using a new campaign or a new website referrer?

Matomo (Piwik) tracks users on your websites or apps, and will group actions of a same user into a visit. Here are some rules which are applied to assign actions to visit:

  • By default, Matomo will track in a visit all actions done by a visitor within 30 minutes of the last visitor’s action. See this FAQ to learn how to configure this 30 minutes delay.

  • By default Matomo will create a new visit whenever a visitor views your website using a different campaign information from the visitor’s ongoing visit. You can disable this behavior by setting create_new_visit_when_campaign_changes=0 under [Tracker] section in your config/config.ini.php file.

  • By default, Matomo won’t create a new visit when a visitor views your website using a different website referrer information. You may configure Matomo to force it to create a new visit whenever a visitor uses a new website referrer. To do so, edit config/config.ini.php file and under [Tracker] section add: create_new_visit_when_website_referrer_changes=1.

  • You may also create visits on demand by using the Tracking API or Javascript Tracker. Learn more in this FAQ.

How do I get the GeoIP2 databases to improve accuracy of Country detection, and detect visitors’ Cities and Regions?

The GeoIP databases are sold by MaxMind. MaxMind sells different databases, each with different amounts and types of information.

The country and city databases can be used to determine the location of an IP address with different amounts granularity:

  • The country database can only tell you the country of an IP address.
  • And, the city database can tell you the country, region, city, postal code, geographic coordinates (latitude/longitude) and area code of an IP address.

The ISP and Organization database can be used to determine the ISP and company of an IP address.

You can find more information on the commercial GeoIP2 databases here.

MaxMind also provides two free databases that are less accurate than the commercial ones. One of the free databases can only be used to determine an IP address’ country. The other, called GeoLite2 City, can be used to determine the same information as the commercial city database. Additionally there is a free GeoLite2 ASN database, which can be used as ISP database.

You can find more information on the free GeoLite2 databases here.

Needless to say, we recommend using one of the city databases.

Matomo includes a tool that will download the GeoLite2 City database for you. You can access the tool by navigating to Settings > Geolocation.

If you want to install the database by hand, you can download each of the free databases here. Make sure to download the binary versions of the databases.

Keep in mind that geolocation data will eventually become out of date. It is recommended you update your databases at least once a month.* The free databases are updated once a month on the first Tuesday.

Note: The latest version of Matomo includes an auto-updater for the GeoIP2 databases.

If you are installing the databases manually, then once you get the database you want to use copy it to Matomo’s path/to/matomo/misc/ subdirectory.

How do I install the PHP extension for GeoIP 2?

MaxMind provides an optional C extension that is a drop-in replacement for MaxMind\Db\Reader. This will speed up the location lookups for GeoIp2 PHP provider enormously and is recommended for high traffic instances.

Activate the GeoIp2 Plugin in Matomo

Check that the GeoIp2 plugin is activated in Matomo. To activate the plugin, go to the “Administration > Plugins” page and click “Activate” next to the GeoIp2 plugin.

Installing libmaxminddb

The PHP extension requires the C library libmaxminddb for reading MaxmindDB files. To install the library you need to download it’s latest tar ball and extract it, or clone their git repository.

git clone --recursive

Note: When cloning from git, run ./bootstrap from the libmaxminddb directory and then run the commands below.

To install it, run the following commands:

$ ./configure
$ make
$ sudo make install
$ sudo ldconfig

You can find more details about installing the library in their READM

Installing Extension

After successfully installing libmaxmindb, you need to download or checkout MaxMind-DB-Reader-php.
Then run the following commands from the top-level directory of this distribution:

cd ext
sudo make install

You then must load your extension. The recommend method is to add the following to your php.ini file:

Now restart the webserver and the GeoIP 2 PHP provider should mention if the extension is loaded in Matomo (Piwik) > Settings > Geolocation.

Note: You may need to install the PHP development package on your OS such as php5-dev for Debian-based systems or php-devel for RedHat/Fedora-based ones.

How do I install the GeoIP 2 module for Apache for accurate Geo location data?

Installing the module

To install mod_maxminddb for Apache please follow their installation instructions.

Configuring Matomo

After setting up mod_maxminddb for Apache, you may need to adjust the Matomo GeoIp2 settings, so Matomo uses the correct server variables. You can do that within the General Settings.

How do I install the GeoIP 2 module for Nginx?

Installing the module

To install GeoIP 2 module for Nginx please follow the instructions in their README

Configuring Matomo

After setting up GeoIP 2 for Nginx, you may need to adjust the Matomo GeoIp2 settings, so Matomo uses the correct server variables. You can do that within the General Settings.

How do I apply accurate geolocation to old visits, tracked before I enabled geo location?

If you want to know the location of the visits your website received before you started using Matomo with GeoIP2, there is a console command you can use. The command will geolocate every one of your visits that have not been located (or just the ones you want to geolocate). Since it goes through many visits in your database, it can take a long time to run.

Connect to your Matomo server over SSH, and open a terminal. The command is called usercountry:attribute and can be executed in the terminal by running (for example):

php ./console usercountry:attribute 2012-01-01,2013-01-01

Things you should note:

  • The command will not work with the Apache or NginX server modules, since this requires sending requests through a web server.
  • If you use the GeoIP2 PHP API it will take longer to run, so we recommend using this command with the GeoIP2 PHP extension. You can see how to install the PHP extension here.

After you run the script make sure you reprocess your reports so new reports w/ location data will be shown.

How do I get company and ISP information using GeoIP2 databases?

MaxMind’s Organization and ISP database can be used to get company/provider information for visitors.

To use them, simply select & purchase the database you want and upload it to the misc Matomo directory.

If you are using a GeoIP server module you may have to do more to get it to work w/ Matomo. The relevant instructions are here for Apache, and here for Nginx.

How do I track and measure how my Matomo service is being used?

The plugin AnonymousPiwikUsageMeasurement allows you to track usage data of the Matomo (Piwik) service into up to two Matomo installations:

  • your own Matomo (can be configured optionally)
  • a custom Matomo (can be configured optionally)

The plugin can be installed via the Matomo Marketplace with just a few clicks within your Matomo installation. As a Super User simply go to the Administration and select Marketplace in the left menu. There you will find the plugin and can install it with just one click. Learn more.

How do I track user acquisition and social media activity with Matomo?

Being able to monitor user acquisition and social media activity is essential for determining whether the outcome of your campaigns is in line with the business objectives. Determining the source of each website visit that gets you closer to your business goals enables you to focus your efforts in the directions that are worth it. Learn more in our article Tracking User Acquisition and Social Media Activity with Matomo (Piwik)

How do I customise any text label such as menus, report names, column names, event names and values, custom dimension names, custom report names, dashboard names and more?

Matomo user interface has thousands of text labels: menus, report names, column names, help text, setting names, tooltips, etc.
Sometimes you want to update these strings and customise them.

Overwrite label within Matomo app

For example, you may want to rename a particular sub-menu in Matomo to be more easily understood by your audience. To define custom strings (translations) for any of Matomo text/label, install the Customise Translations plugin from the Marketplace. This plugin lets you easily overwrite any string of Matomo. The overwritten strings will be stored in the database as plugin settings and will be persisted when you upgrade Matomo in the future.

Overwrite labels within reports data

For example, you may want to rename a Custom Dimension value (that you have tracked in the past) to make it more clear to your audience.
When you need to rename strings within the reports and the data, you can use another plugin called Custom Translations. This plugin lets you translate the following entities and tracked values into another language:

  • Tracked custom dimension values
  • Tracked event values
  • Configured custom dimension names
  • Configured custom report names
  • Configured Dashboard names

How can I add the dimensions Campaign name, Campaign medium, Campaign source, Campaign keyword, Campaign content to a custom report?

If you want to add the dimensions like Campaign name, Campaign medium, Campaign source, Campaign keyword, Campaign content to your Custom reports, you can do that just by installing Marketing Campaigns Reporting plugin. By default these dimensions are not available in your Custom report except keyword.

Note: This FAQ written on an assumption that you are using Matomo On-Premises.

How do I create a simple affiliates system and track new customers and new revenue for each affiliate?

It is possible to create a simple affiliate mechanism using Matomo. For this system to work, you give your affiliate a special URL parameter they use to link to your website. Then you can track all new customers and revenue generated by each of your affiliates using Matomo.

Track users and customers with an affiliate URL parameter

When your affiliates send to you new leads, they would append to their URL linking to you a new parameter: &pk_cpn=Affiliate-XYZ. When users will click a link to your website URL and including this pk_cpn parameter (which is an alias of pk_campaign), then the user will be tracked as coming from a Campaign named Affiliate-XYZ.

Reporting affiliate conversions and revenue

To track conversions and revenue:

  • First you create a goal and set a Revenue for your goal which tracks the actual revenue of each conversion.
  • ​​Then in Matomo > Goals, you would be able to see how many visitors came from each affiliate by looking at the “Conversions” and “Revenue” metrics in your Campaign names report for your goal.
  • You are then able to use this report to calculate what revenue to pay your affiliates.

Accurately credit your affiliates who first brought you the leads

In most cases your affiliates are the ones who first refer new leads to you. But by default Matomo credits the “last seen referrer” which will cause many affiliate conversions to be missed. You therefore need to manually enable the “First seen referrer” attribution in your website, to accurately attribute your affiliates who first brought you customers. Read our First seen referrer attribution FAQ.


Using Matomo as a simple affiliate system has some known limitation:

  • If customers weren’t tracked by Matomo for some reasons (using ad-blockers, opted-out, or other reasons), then the goal conversion and the revenue wouldn’t be tracked at all, and therefore wouldn’t be attributed correctly to the affiliate.

How do I tell Matomo to track Unique Visitors based on the Visitor ID cookie, instead of using IP Address?

By default, Matomo (Piwik) will match a Unique Visitor based on the Visitor ID cookie (if visitor supports cookies) and/or based on a user fingerprint processed from the IP address and user device information (if visitor does not support cookies).

There are a few use cases when the default Tracker algorithm to track unique visitors does not work as expected. For example if you use Matomo on an Intranet and all users have the same IP address, or if many of your visitors come from a Company or University network and have all the same IP addresses, then Matomo may track many users as one unique visitor.

In these cases you can enable better unique visitors recognition:

  • If your website has a login form, when users sign-in we recommend to tag your users with a User ID.

  • Alternatively if you cannot use User ID then you may force Matomo not use the IP address and device info to decide Unique Visitors but instead rely on the Visitor ID found in the user cookie. To force Matomo to not rely on the IP address as a mean to differentiate one user from another, edit your config/config.ini.php and add a new section [Tracker] with the following:

    trust_visitors_cookies = 1

See also: How does Matomo detect unique and returning visitors? (with User ID, Visitor ID from cookie and/or fingerprint)

How do I clear the various caches in Matomo?

Matomo (Piwik) creates cache files during its normal operation. The caches are automatically deleted in Matomo during an upgrade of core, or an upgrade of a plugin. But in some cases it is useful to be able to delete manually.

To delete all cache files used by Matomo, you can run the following command in your Matomo directory:

 ./console cache:clear

Alternatively if you don’t have access to the server and command line, you can delete Matomo caches by deleting all the files and directories inside the path/to/piwik/tmp/ folder in Matomo (the tmp/ folder).

How do I get media analytics for IceCast radios streams?

Icecast is a streaming media (audio/video) server which is used to create an Internet radio station or a privately running jukebox and many things in between. It is very versatile in that new formats can be added relatively easily and supports open standards for communication and interaction (currently supports Ogg Vorbis and Ogg Theora, Opus, WebM and MP3 streams).

With Matomo (Piwik) you can get awesome analytics for your IceCast multimedia streams:

  • A community plugin IcecastStatistics lets you connect to Icecast and import key metrics into your Matomo dashboard.
  • We also recommend that you track how people use your Audio player on your website, with the official Media Analytics for Matomo. ​​​​​​​​When you embed your audio file, we recommend you set a title HTML attribute on your <audio> elements so that Media Analytics can detect the media title and give you detailed insights about how users consume your radio. (Get Media Analytics)
  • Finally, if you have access to the IceCast server logs, you may also import the IceCast logs in Matomo using our Log Analytics solution.

How do I change the number of rows in scheduled email reports (csv, html or pdf) and show more than the default 23 rows?

It is possible to change the number of rows displayed in email reports, but currently this is a global change and so it is not possible to customise the number of rows in individual reports (see feature request).

To change number of rows from the default of 23 rows to for example 50 rows, please edit your config/config.ini.php file and and set under the [General] category:


All reports in your scheduled email reports will now list up to 50 rows.

How do I enable tracking for visitors when JavaScript cannot be used on a page (or for Visitors that have disabled Javascript)?

Sometimes it is not possible to use the standard Matomo Analytics JavaScript Tracker in your app or websites. For example:

  • to track visitors who have JavaScript disabled
  • to track how often pages are viewed on a website you don’t control and won’t allow you to include JavaScript code in their pages (such as Ebay or other third party marketplaces).
  • to track your newsletter emails opened rate (this is covered in a separate FAQ)

With Matomo you can still enable tracking of visitors when JavaScript cannot be used, using the Matomo Image Beacon.

You can include an image in your web pages, the image simply being a reference to the Matomo Tracking API endpoint, and Matomo will collect data about your users. Here is what the image looks like:

<!-- Matomo Image Tracker -->
<img src="{$IDSITE}&amp;rec=1" style="border:0" alt="" />
<!-- End Matomo -->

In this example above, replace {$IDSITE} with your Matomo website ID, and replace with your Matomo URL:

The following parameters can also be passed to the image URL:

  • rec – (required) The parameter &rec=1 is required to force the request to be recorded
  • idsite – (required) Defines the Website ID being tracked
  • action_name – Defines the custom Page Title for this page view
  • urlref – The Referrer URL: must be set to the referrer URL used before landing on the page containing the Image tracker. For example, in PHP this value is accessible via
  • idgoal – The request will trigger the given Goal
  • revenue – Used with idgoal, defines the custom revenue for this conversion
  • bots – Set &bots=1 to track all requests to the tracking image, including from bots and robots
  • and more! – There are many more parameters you can set beyond the main ones above. See the Tracking API documentation page.

Note: this image tracking code does not use Javascript and is not able to create first party cookies, so Matomo will not be able to track some user information, learn more in When tracking visitors using an image beacon instead of the JavaScript tracker, what are the differences?

Enable Tracking for visitors who have JavaScript disabled

When you use the standard Javascript Tracking Tag, Matomo (Piwik) will only track visitors with Javascript Enabled in their web browser. You can configure Matomo to also track users who have disabled Javascript: to do so, edit the Matomo Tracking Tag and add a <noscript> element which includes the Image beacon:

<noscript><p><img src="" style="border:0" alt="" /></p></noscript>

After making this change, visitors with disabled Javascript will execute the noscript and will load the matomo.php image and will have their traffic recorded in Matomo.

How do I verify the cryptographic PGP signature of Matomo packages?

When we create a new Matomo (Piwik) release, right after the Matomo core packages .zip and .tar.gz have been created, the Matomo release manager signs the packages using his PGP key. This creates a cryptographic signature which gives you the possibility to check that the release package you have downloaded is the same as the one that was provided by Matomo team. Learn how to verify the signature in this blog post with instructions for Windows, Mac OS X and Linux.

How do I customise the JavaScript Tracker code on all websites at once?

To measure your websites with Matomo (Piwik) you are likely to use the Matomo JavaScript Tracking code, a small snippet of code that should be added in your websites pages. When visitors view your website, the Matomo tracking code gets executed by the browser and your visitor’s browsers load the piwik.js file from your Matomo server, for example:

In some cases it may be useful to customise the piwik.js tracking code. This FAQ explains the best practise method to let you safely edit the piwik.js file. Note that this is an advanced feature and should be used with great care. First you will need to install and activate the plugin CustomTrackerJs. Login as a Super User in Matomo then go to Administration, click on Marketplace and install the plugin CustomTrackerJs. After activating this plugin, Super User can click on the Admin menu ‘Plugin Settings’ link. Any text entered in the field ‘Javascript code’ will be appended to the content of piwik.js.

For example, if you wanted to enable Content Tracking on all your websites at once, enter the following:

if ('undefined' !== typeof _paq) {

Note: changing piwik.js will affect all your websites at once (all websites load the same piwik.js file). Use this feature with care: if you input invalid JavaScript code then it may create JavaScript errors on your websites.

How do I take notes of particular events influencing my traffic?

Often when using Matomo (Piwik) you may have findings from the data, insights, or maybe you just would like to note down the changes you have made on the website. In Matomo you can take notes on the graph and set any number of text messages. They’re called Annotations (click to learn more).

How do I get the Visitor Geo Location data from the Visitor IP? (or in JavaScript/JSON when IP address is not known)

In Matomo (Piwik) we recommend to configure Geo Location so that your visitors are accurately tracked. Once it is setup, you can use the GeoIP database to get an IP to Country, or IP to City, or IP to Region information. We have added a simple API that you can re-use, called UserCountry.getLocationFromIP.

To use it, go to Matomo, click API, click on “UserCountry” then on the getLocationFromIp call.

Click to see a typical response from the UserCountry.getLocationFromIP API call.

You may use this simple Web API provided by Matomo to add geo location functionality to your Apps, for example.

JavaScript / JSON API to get the visitor geo location without knowing the IP address

Since Matomo 3.10.0 you can also use this API in JavaScript / JSON by simply calling the API without specifying the ip URL parameter. This is valuable because when you’re running in the browser in JavaScript it is not possible to get the IP address. So by simply calling this API: https://analytics.example.comorg/?module=API&method=UserCountry.getLocationFromIP&format=json in JavaScript you will get the geo location data for the current user requesting this request. This would be useful when you want to personalise the website’s content based on the user’s geolocation for example. Notes:

  • This will work only when anonymous access is enabled and has access to at least one website.
  • because this API request takes around 200ms or more, this is too slow for your website to depend on this request to personalise content. We would only recommend it when personalising elements on the page that are optional (after the main page was loaded) to ensure your website loads quickly.

How do I disable the update notification email when a new Matomo version is released?

At Matomo (Piwik) we have a policy to recommend users to use the very latest Matomo version. To help you with keeping up to date with the latest version, your Matomo server will automatically send you an email within a day after a new version was published. The subject email is New Matomo 3.0.0 is available and the message contains a direct link to your Matomo to update in one click. The email is only sent to users having Super User access.

If for some reasons you do not want your Matomo server to send these notification emails you can disable them by editing your config/config.ini.php file and adding below [General] the following: enable_update_communication=0

Note: this setting will also disable the New Plugin releases notifications emails. Plugin notifications is a feature you can enable in ‘General Settings’ that will send Super Users an email when a new plugin versions is released on the Marketplace.

How do I access a real time counter of visitors currently on my site?

On the Matomo (Piwik) dashboard you may add the widget “Real time > Real time visitor count”. This widget shows a counter of the number of people currently on the website.
By default Matomo uses a 3 minutes delay to define a “Visitor currently on the website”. You may edit this value in the config.ini.php file, for example set to 10 minutes:


How do I fix the errors “Unable to write in the cache directory” or “The directory matomo/tmp/cache/*” is not writable.”?

It may happen that the User Interface of Matomo fails to load and display an error message which can mention Unable to write in the cache directory or The directory tmp/cache/* is not writable. This indicates there is a small issue around folders and/or file permissions within the Matomo directory. The full error message could be A fatal error occurred. The following error just broke Matomo (v3.10.0): An exception has been thrown during the rendering of a template "Unable to write in the cache directory"

These issues can be addressed by setting the correct permissions that will let processes read and write the tmp/ folder.

General solution: if your web server username is www-data then you can have your webserver own the files in this directory (replace www-data by the web server username, sometimes called apache):

sudo chown -R www-data:www-data /var/www/html/matomo/tmp/*

If your server is running SELinux or CentOS, you may be able to fix the issue with the following commands:

chcon -t httpd_sys_content_rw_t /var/www/matomo/tmp
chcon -R -t httpd_sys_content_rw_t /var/www/matomo/tmp/tracker/
chcon -R -t httpd_sys_content_rw_t /var/www/matomo/tmp/cache
systemctl reload httpd.service

If this error keeps occurring, the issue may be that the scheduled task (crontab) for the core:archive console command is running and writing these files as a different user. To solve the issue you want to modify your crontab so that it runs the core:archive command as the web server user, for example running as www-data or apache. See the the user guide for more details.

It has also sometimes helped to upgrade PHP to use a recent PHP release.

If you still experience this issue after following the steps above, please get in touch with us at and we will help troubleshoot further.

How do I create Custom Segments of Visitors and apply the segments to filter my report’s data?

Matomo (Piwik) lets you easily create advanced Custom Segments of Visitors. You can save Custom Segments to reuse them later. As well as being available from the User Interface, Custom Segments can also be applied via the Analytics API. Custom Segments can contain unlimited number of AND and OR clauses, using any combination of more than 40 available dimensions (visitor attributes).

Alternatively, you can create Custom Reports which lets you filter any custom report depending on your requirements. This way you can for example add several reports that target a specific audience next to each other and compare them much easier.

Note: you may also apply custom segments to Custom reports scheduled to be sent by sms text message and/or email reports as HTML or PDF. With Matomo you can scheduled reports on a custom segment of your audience, better analytics for your team members and clients.

How do I monitor that Matomo service is up and running?

To setup monitoring of your Matomo (Piwik) analytics service, we recommend to setup the following monitoring checks:

  • HTTP Reporting API and Core platform: request to /index.php?module=API&method=API.getPiwikVersion&token_auth=YOUR_TOKEN_AUTH_HERE should return http status 200
  • HTTP Tracker API: request to /piwik.php should return http status code 200

We recommend to use https:// in the monitoring URLs checks, to make sure that your Matomo service works over secured connection.

How do I improve my website pages load time and speed and minimise Matomo JavaScript Tracker performance overhead?

Many studies have shown that performance matters a lot. For each 100ms a websites takes longer to load, a business may lose about 0.1% to 1% in revenue. It also matters because Google judges page speed as a ranking factor for search results page. At InnoCraft, we help our clients optimizing their Matomo (Piwik) integration and recommend different ways of embedding the tracking code tailored to their needs. The best way to embed the tracking code depends on your website, what you want to achieve, and how important tracking is to you.

Read more in our blog posts:

How do I make “Transitions” feature work faster on high traffic websites?

Transitions is a very useful Matomo (Piwik) feature, which is also fundamentally different from most of the other Matomo reports. It does not use archiving to pre-process reports but instead it retrieves its information directly from the logs. This means that the Transitions report can take a few seconds to load on websites with more traffic, but on the other hand, Transitions does not require pre-processing and does not affect Archiving performance.

In our tests, Transitions could handle periods with several 100.000 pageviews quite well. Once you get into the millions, it starts to test your patience. But in general, performance depends heavily on the power of your database server and other things like traffic patterns.

Also, the first time you open Transitions on any page might be a fair bit slower than consecutive calls. This is because after the first time, the database caches are hot and the queries can be executed much faster.

If you have lots of traffic, you shouldn’t open Transitions on long periods of time. But that’s not really a problem because the most important thing is to have enough data in order to get statistically representative results. If you achieve this mass with a single day, it should be fine if you only use it for yesterday (or today).
Since the aggregation happens in the database, you can tune things by adding some indexes to the MySQL tables.

You can create the following INDEX to speed up Transitions on page URLs:

ALTER TABLE  `matomo_log_link_visit_action` ADD INDEX `transitions_url` (  `idaction_url` ,  `idsite` ,  `server_time` );
ALTER TABLE  `matomo_log_link_visit_action` ADD INDEX `transitions_url_ref` (  `idaction_url_ref` ,  `idsite` ,  `server_time` );
ALTER TABLE  `matomo_log_visit` ADD INDEX `transitions` (  `visit_entry_idaction_url` ,  `idsite` ,  `visit_last_action_time` );

We have confirmed that these indexes drastically improve performance for pages that had a fairly low share of the overall traffic. They do add a little extra complexity when inserting new logs but speeding up Transitions also means having the queries it does out of system in a shorter amount of time, which in turn has a positive impact on tracking performance.
You don’t need all of these indexes. Instead, you can add them one by one until the performance of Transitions is satisfactory.

Note: Adding these INDEXes will also increase the Performance of Page Overlay reports.

How do I configure Matomo Tracking for high reliability?

To configure Matomo (Piwik) Tracking for high availability, reliability, and better scalability, please see this other FAQ: How do I configure Matomo to use Redis for better scalability?

Note: if you need professional support, get in touch with the Matomo consultants who are experts in scaling and configuring Matomo.

Related user guides: learn more about Matomo performance, and read tips how to optimize Matomo for speed. You may also be interested in Data Limits.

How do I configure Matomo to use Redis for better scalability?

When you track a lot of data in your Matomo (Piwik) server, you may find that the calls to the Tracking API (piwik.php) become a scalability bottleneck. We have created a new plugin QueuedTracking that we release away for free(dom) to you, the community. This plugin will help with scaling your Matomo server to track dozens or hundreds of millions of requests per month.

This plugin writes all tracking requests into a Redis instance instead of directly into the database. This is useful if you have too many requests per second and your server cannot handle all of them directly (eg too many connections in nginx or MySQL). It is also useful if you experience peaks sometimes. Those peaks can be handled much better by using this queue. Writing a tracking request into the queue is very fast (a tracking request takes in total a few milliseconds) compared to a regular tracking request (that takes multiple hundreds of milliseconds). The queue makes sure to process the tracking requests whenever possible even if it takes a while to process all requests after there was a peak.

To get started, install the QueuedTracking plugin from the Marketplace. Click on the FAQ tab to learn more about the requirements and how to use the plugin on your Production Matomo server. For any bug report or feature request, please post them in the plugin’s issue tracker.

Contact Matomo Consultants if you need help with high traffic Matomo setup, or if you’d like experts to take care of your Matomo setup, configuration, maintenance and security.

How do I fix the tracking failure “Request was not authenticated but should have.”

You see a failed tracking request with this error message when you use specific tracking parameters as part of the HTTP tracking API without authenticating the request correctly. Some parameters that require authentication are for example cip (forcing a specific IP address), or cdt (overrides the datetime of the request).

When such an error occurred, you need to make sure to set a token_auth of a user with at least write permission. If you have set a token, check the set token to make sure it is still the same and no copy/paste error has happened.

How do I fix the tracking failure “The site does not exist.”

You see a failed tracking request with this error message when an invalid idSite is configured as part of your tracking code.

For example, in the default JavaScript tracking code the idSite is configured like this:

_paq.push(['setSiteId', '1']);

When you get this error, make sure your tracking code includes this line (or for example tracker.setSiteId(idSite) if you configure the tracker manually). Then check the configured ID actually exists by going to “Administration” => “Measurables/Websites”. Maybe the site has been deleted, or never existed in the first place and setting the correct ID will resolve the problem.

How to configure Redis as a shared cache in a load balanced environment?

By default Matomo (Piwik) caches data in the local filesystem of each server. If your Matomo environment consists of multiple servers a common problem is that caches are only invalidated on one server instead of all servers. To workaround this we recommend to use a shared cache for all of your servers. You can do this by installing and configuring Redis.

Known issues:

  • The Redis cache can be only used if all servers have the same path to the Matomo directory
  • There may be temporary issues while deploying a new Matomo version if not all servers are updated at the same time.

To use Redis as a cache follow these steps:

  • Make sure you are using at least Matomo 2.10 (latest Matomo version recommended)
  • Install Redis see Redis Quickstart
  • Install the PHP extension phpredis
  • Don’t forget to restart your webserver
  • Once successfully setup, enable it in the config file config/config.ini.php. Make sure to adjust the section [RedisCache] to your needs. You have to make this change on each of your server.

changes to config/config.ini.php:

backend = chained

backends[] = array
backends[] = redis

host = "" 
port = 6379
timeout = 0.0
password = ""
database = 14
; In case you are using queued tracking: Make sure to configure a different database! Otherwise queued requests will be flushed

How do I disable tracking failures notification emails?

To disable email notifications about Tracking Failures, edit your config/config.ini.php file and under the [General] section, add the following line:

 enable_tracking_failures_notification = 0

How do I configure Redis for session handling in a load balanced environment?

By default Matomo (Piwik) uses the filesystem as a session handler. If your Matomo environment consists of multiple servers a common problem is that multiple sessions are created per user meaning a user might have to log in multiple times and a log out might actually log out a user only on one server. To workaround this there are two options:

To use Redis as a session handler follow these steps:

  • Install Redis see Redis Quickstart
  • Install the PHP extension phpredis
  • Configure Redis as PHP session handler in php.ini on each of your server.

In php.ini:

session.save_handler = redis 
session.save_path    = tcp://
; In case you are using queued tracking or Redis as a cache: Make sure to configure a different database! Otherwise queued requests will be flushed

; multiple servers can be configured comma separated
session.save_path = "tcp://host1:6379?weight=1&database=2, tcp://host2:6379?weight=2&timeout=2.5, tcp://host3:6379?weight=2"

See Redis Session Handler for more documentation.

  • Don’t forget to restart your webserver
  • Once successfully setup, make sure there is no Matomo default session handler configured by setting the session_save_handler to an empty value in the config file config/config.ini.php. Youconfig/config.ini.php have to make this change on each of your server.

In config/config.ini.php:

session_save_handler = ""

In JavaScript Tracker, how do I enable the use of navigator.sendBeacon()?

When tracking visitor actions in JavaScript on your website, it is possible to enable the use of the navigator.sendBeacon() method which Matomo will use to asynchronously transfer the tracking requests over HTTPs to the Tracking API. To enable this feature call the alwaysUseSendBeacon method as below:

// enable the use of navigator.sendBeacon()

// standard Matomo tracking code below

Why would I use this feature? When enabling this feature, likely more of your clicks on downloads/ outlinks will be tracked and reported in Matomo (more accuracy). Also it will reduce the link tracking time to a minimum of 100ms instead of the default 500ms (default which can be increased), so that when they click on an outlink then the navigation to this clicked page will happen 400ms faster (faster and better user experience). Send beacon will only be used if the browser actually supports it.

Some ad blockers or other browser extensions may block the sendBeacon() feature which could again cause limited data loss in these cases.

Note: We are [considering enabling this by default][3] in Matomo 4 or later.


There may be times where you want to get a report for the top pages that users reached via a specific channel type, for example from a specific website or social network. This can be achieved in Matomo just by creating a Segment and opening the Entry page reports.

Follow the steps below to get the top pages used by visits from a specific channel:

  1. On the Top control bar click “All Visits” (the Segment Editor)
  2. Click on “Add New Segment”
  3. Name the segment as desired
  4. Choose “Referrers” > “Channel Type” by clicking the dropdown or search for “Channel Type”
  5. Enter the desired “Channel Type” in the value field, either: direct, search, website, social or campaign
  6. Click on “Save & Apply”
  7. Click on “Behaviour” > “Entry Pages” on the left menu of your dashboard
  8. You can now see your Top pages in the report, that visitors from your chosen channel have landed on.

How do I submit a feature request for Matomo?

We appreciate you taking the time to explain how we can improve Matomo (Piwik)!

If you realize that there is something you need that is missing in Matomo, please submit a feature request to Matomo.

See also: How do I report a bug in Matomo?

How do I see the pages that most visitors landed on? How do I access the top pages people use before leaving the websites?

Matomo (Piwik) reports Pages URLs and Page Titles. You can see the Top Entry Pages by clicking on Behavior > Entry pages. By default, it shows the top Entry Page URLs, but you can switch to the Entry Page Titles by clicking on the “Related report: Entry Page Titles” link below the report.

Similarly you can access the top pages that people see before leaving the sites, click on Behavior > Exit pages. It lists the “worst” Exit Pages URLs by default, but you can access the top exit page Titles by clicking on the Related reports link below the table.

How do I find a specific visitor logs by segmenting on Visitor ID?

To find visitor logs of a particular visitor you need to know an attribute of the visitor you are searching for. For example you can find a specific visitor based on their Visitor ID or User ID or a Custom Dimension value. In this example below it is assumed that you know the Visitor ID of the visitor you are looking for. To segment using the visitor ID, please follow the steps below:

  1. On the Top control bar click “All Visits” (the Segment Editor)

  2. Click on “Add New Segment”

  3. Name the segment as desired

  4. Click on the segment drop down, then click on “Visitors” from the list and choose “Visitor ID”.

  5. Paste the Visitor ID in the “value” field. The segment reads “Visitor ID” is YOUR_VISITOR_ID

  6. Click on “Save & Apply”

  7. Open the Visitors > Visit logs report.

This will display the log of all the visits for this visitor for the chosen period. You can then click to open the Visitor Profile.