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

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.

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 “Actions > 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 (Piwik) 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) internally stores all times in UTC, which is a Software Engineering best practise. However Matomo 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.

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 (Piwik), 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 (Piwik). 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 (Piwik) 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 (Piwik) 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 (Piwik) 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 (Piwik) 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!

Note: this console command will update your Matomo (Piwik) Database schema and will add 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

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

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 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 Actions> Page titles report.
You will also be able to see this information in the Visitor Log.

In this example, replace:

  • by your Matomo (Piwik) 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 Actions > Page URLs report.
  • &action_name=Email%20opened records a Page Title set to “Email opened” in Actions > 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.

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

If you need to access Matomo (Piwik) 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 (Piwik), 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=-1 parameter makes sure that all the data for this day will be returned.
  • 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). 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 (Piwik) 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 (Piwik) 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 (Piwik) 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 (Piwik) installation, for example when some tracking requests are not processed correctly.

LogViewer plugin

Configuring logging in Matomo

By default Matomo (Piwik) 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 (Piwik).

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

log_writers[] = file

The Matomo (Piwik) application log is located at piwik/tmp/logs/piwik.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 (Piwik) 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 (Piwik) server. If you have deleted some of your old logs, Do Not Proceed! Some of your data could be lost forever.

1) Cleanup the existing archived data

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

  • (Recommended) To reprocess reports for a specific day, or specific period, you can delete the two Mysql tables piwik_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 if you wish to reprocess archiving for all reports for all dates, you will have to delete all piwik_archive_* tables in the Matomo (Piwik) 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).
  • (Also recommended) You can call a Console command (or the API) to tell Matomo (Piwik) to invalidate and re-process the past reports.
  • or you can 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)

You are almost done!

2) Re-process your reports

When you login your Matomo (Piwik), 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_PIWIK_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 (Piwik) 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 (Piwik).

  • 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 (Piwik) 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 (Piwik) 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 (Piwik) report, in Actions > 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 is hosted in your intranet. To make sure that all unique visitors are tracked correctly in your intranet, there are two choices:

1) Either make use of 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.

2) Alternatively if you cannot use User ID then please edit your config/config.ini.php and add the following:

trust_visitors_cookies = 1

This will ensure that even if all visitors have the same IP, browser configuration, OS, etc. they will be counted as unique visitors based on the first party cookies. If not set, you will see a lower number of visits.

Note that this setting will also apply to your non intranet websites if you track in your Matomo (Piwik) both intranet and internet websites. We plan to differentiate between Websites and Intranets in a future version (more info).

If you use SharePoint for your intranet, check out our SharePoint Analytics product.

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 (Piwik) 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 (Piwik) 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 (Piwik) 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 3.3.1). 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

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 (Piwik) remotely. To include any Matomo report or widget via an iframe, click to see this FAQ.

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 (Piwik), 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 (Piwik)

  4. To remove the Matomo (Piwik) 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 piwik_archive_* table:

    DROP TABLE piwik_archive_numeric_Y, piwik_archive_blob_Y;
  • To delete statistics data for a given website, run the following query for each piwik_archive_* table:

    DELETE FROM piwik_archive_numeric_Y, piwik_archive_blob_Y WHERE idsite = X;

The archive tables will automatically be re-created from the Visitor logs when Matomo (Piwik) 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 piwik_log_visit WHERE idsite = X;
    DELETE FROM piwik_log_link_visit_action WHERE idsite = X; 
    DELETE FROM piwik_log_conversion WHERE idsite = X; 
    DELETE FROM piwik_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 (Piwik) 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).

To enable your Matomo (Piwik) server to serve data, edit your config/config.ini.php file. To allow your Matomo to serve data to all domains:

cors_domains[] = *

To allow Matomo (Piwik) 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?

You can use the SiteMigration plugin to move a website (and its data) to a new Matomo (Piwik) instance.

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 (Piwik).

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 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.

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

When configured, only users from a configured IP address can log into your Matomo (Piwik). 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 (Piwik) 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 (Piwik) 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 all Visitor 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. In Matomo 2.14.0 we released a new console command which you can use to delete all visitor 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 (Piwik) 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 visitor 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 visitor log data.

Related FAQs

If you want to configure Matomo (Piwik) to automatically purge your old data (whether visitor 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 (Piwik) 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 (Piwik) 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 may be two or more domains.

  2. Generate your JavaScript tracker code. In Administration > Websites > Tracking Code, click on “Advanced: Show” link, then check the option “Enable Cross Domain linking”. 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 (Piwik) 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 (Piwik) 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 (Piwik) 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 reports emails?

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 Gmail SMTP server?

You can configure Matomo (Piwik) to use GMAIL as the mailserver. To do so, 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: YES
  • SMTP server address:
  • SMTP Port: 465
  • Authentication method for SMTP: Login
  • SMTP username: your gmail username
  • SMTP password: your gmail password
  • SMTP encryption: SSL

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

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

How do I import Google Analytics data in Matomo?

It is not yet possible to migrate your Google Analytics data in Matomo (Piwik) easily. We would love to build such tool, please learn more in this blog post and the Github issue.

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

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

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 (Piwik) 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 (Piwik) 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 (Piwik). 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 (Piwik) 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 (Piwik) reporting interface. Your data is still tracked as expected, but the UI and the Reporting APIs are disabled.

If you run the Matomo (Piwik) 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 (Piwik) 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 (Piwik) and ingest logs of piwik.php requests

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

By default Matomo (Piwik) will not process the number of Unique Visitors for Years and Custom Date Ranges (for performance reasons). The query to process the number of unique visitors is quite costly and takes seconds or even minutes to run on a High traffic Matomo server. 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:

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 (Piwik) URL, ensuring that nobody can find out the websites tracked by Matomo!

Note: when you use this technique, the feature to exclude visits via the ignore cookie will not work. You may also be interested in White label plugin for Matomo (Piwik) 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 “Unique users”. 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.

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 (Piwik) 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 (Piwik) 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 (Piwik) 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 (Piwik) 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 (Piwik), 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 (Piwik) server).
  • You may also force Matomo (Piwik) 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 (Piwik) 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.

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 (Piwik) 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 (Piwik) 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 (Piwik).

If you use Matomo (Piwik) 2.1 or newer:

  1. Connect to your Matomo (Piwik) 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 (Piwik) 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 (Piwik).

If you use Matomo (Piwik) 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 (Piwik) 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 (Piwik) to the latest version as soon as possible!

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.

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 (Piwik). 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 (Piwik) 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 > Visitor Log. The Visitor 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 piwik_log_* See this FAQ.

Note: in both cases, the IP address will only be displayed if you are logged in Matomo: for privacy reasons, IPs 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, 10) as visitorId FROM piwik_log_visit;

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 (Piwik) 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 (Piwik) as an Administrator or a Super User
  • Go to Administration > Users
  • Under “Manage access”, locate the “anonymous” user
  • Click on the “View” icon to set the anonymous the right to view data for this website

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

  • Under “Manage access”, locate the “anonymous” user
  • Click on the “No Access” icon

Note that when an anonymous user (not signed in) visits your Matomo (Piwik) 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”
  • 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”.
  • 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 record tracking data in the past, and tell Matomo to invalidate and re-process the past reports?

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 common 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.

To tell Matomo (Piwik) 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 --dry-run

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 (Piwik) 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.

  • 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 (Piwik) 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 (Piwik) 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 (Piwik) 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 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 (Piwik) 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, Matomo (Piwik) looks only in the past 30 minutes. 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 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 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, 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.

If you cannot use User ID to track unique users, it is still possible to force Matomo (Piwik) 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 (Piwik).


  • this code should only be displayed once after the user has logged in; if you leave this code in all the page views, it would create a new visit for each page view and make your Matomo (Piwik) reports much less useful.
  • it is recommended to use User ID instead when possible.

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 (Piwik) 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 (Piwik) 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 (Piwik) 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 GeoIP 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, region 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.
  • The region database can tell you the region and the country.
  • 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 databases can be used to determine the ISP and company of an IP address.

You can find more information on the commercial 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 GeoLite City, can be used to determine the same information as the commercial city database.

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

Matomo (Piwik) includes a tool that will download the GeoLiteCity 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 (Piwik) includes an auto-updater for the GeoIP 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/piwik/misc/ subdirectory. If you’re using the GeoLite City database, make sure you rename it from




This will help you avoid some potential problems.

How do I install the GeoIP Geo location PECL extension?

If you’re using Ubuntu or Debian run the following command:

sudo apt-get install php5-geoip php5-dev libgeoip-dev

If you have to build the extension by hand, first make sure you have the following installed:

  • PEAR/PECL (which includes the pecl executable)
  • The GeoIP C library with development files
  • Build tools (including GCC, make, etc.)
  • php development files

Then run the following command:

sudo pecl install geoip

Finally, add the following to your php.ini file:

Once the PECL extension is installed, you must configure it. Add the following to your php.ini file:


Replace /path/to/piwik with the path to your Matomo (Piwik) installation.

And finally, if you are using the GeoLite City database there is one more thing you need to do. The PECL extension won’t recognize the database if it’s named GeoLiteCity.dat so make sure it is named GeoIPCity.dat.

Restart the webserver and the GeoIP extension should now be loaded and working in Matomo (Piwik) > Settings > Geolocation.

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

Installing the module

If you’re using Ubuntu or Debian, run the following command:

sudo apt-get install libapache2-mod-geoip

If you’re using a system that uses RPM, you can try the following command:

sudo yum install mod_geoip

If you can’t do either of these, you may have to build the module by hand.

Configuring the module

Open the GeoIP configuration file for the module. It is located at:


Add the following lines to the bottom of the file (replace ‘/path/to/database.dat’ with the path to your GeoIP database):

GeoIPDBFile /path/to/database.dat
GeoIPScanProxyHeaders On

If you have multiple GeoIP databases (for example, a city one and an ISP one), you can add multiple GeoIPDBFile lines.

Restart the webserver and the GeoIP extension should now be loaded and working in Matomo (Piwik) > Settings > Geolocation.

How do I install the GeoIP module for Nginx?

Installing the module

First, check if your build of nginx is already using the GeoIP module. Run the following command:

nginx -V

If the output contains


then you don’t have to do anything to install it. You just have to configure nginx to use it.

If it doesn’t contain


then you’ll have to build nginx yourself, passing




. For more information on building nginx, see this.

Configuring the module

Open your server configuration file and add the following to the http section:

geoip_country  /path/to/CountryGeoIP.dat
geoip_city     /path/to/GeoIPOrLiteCity.dat;



with the path to your GeoIP country database and replace


with the path to your GeoIP city database.

IMPORTANT: For the nginx module, you must provide both a country database and city database. If you just provide a city database, Matomo (Piwik) will not see any country information.

If you’re using an Organization or ISP database, you can add it to the config with:

geoip_org /path/to/GeoIPISPOrOrg.dat

Unfortunately, you can only supply one database here for the nginx module, so if you have both the ISP and Organization database, you will have to pick one to use.

Now make sure the following parameters are passed to fastcgi:

fastcgi_param GEOIP_ADDR $remote_addr;
fastcgi_param GEOIP_COUNTRY_CODE $geoip_country_code;
fastcgi_param GEOIP_COUNTRY_NAME $geoip_country_name;

If you’re using a city database, add the following parameters:

fastcgi_param GEOIP_REGION $geoip_region;
fastcgi_param GEOIP_REGION_NAME $geoip_region_name;
fastcgi_param GEOIP_CITY $geoip_city;
fastcgi_param GEOIP_AREA_CODE $geoip_area_code;
fastcgi_param GEOIP_LATITUDE $geoip_latitude;
fastcgi_param GEOIP_LONGITUDE $geoip_longitude;
fastcgi_param GEOIP_POSTAL_CODE $geoip_postal_code;

If you’re using an organization database, add the following parameters:

fastcgi_param GEOIP_ORGANIZATION $geoip_org;

Configuring the module on FreeBSD

If you use FreeBSD, or have an error such as unknown directive "geoip_country" in nginx.conf please check out the following blog post Loading the GeoIP Module with nginx 1.10.0 on FreeBSD

That’s all, folks. Enjoy!

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 (Piwik) with GeoIP, 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 (Piwik) 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 GeoIP module, since this requires sending requests through a web server.
  • If you use the GeoIP PHP API it will take longer to run, so we recommend using this command with the GeoIP PECL extension. You can see how to install the PECL 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 GeoIP databases?

MaxMind’s Organization and ISP databases 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 (Piwik) directory.

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

If you are using the PECL extension and are using a custom directory for your GeoIP databases, upload the new database to this directory instead of Matomo’s misc directory.

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 Actions > 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 Actions > 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 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 three Matomo installations:

  • (enabled by default, can be disabled).
  • your own Matomo (Piwik) (can be configured optionally)
  • a custom Matomo (Piwik) (can be configured optionally)

The opt-in and anonymised usage tracking information that is sent to the creators of Matomo (Piwik) will be used to build a better product and a great user experience.

The plugin can be installed via the Matomo (Piwik) 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 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 (Piwik) 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 (Piwik) 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 (Piwik) 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 (Piwik), 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 (Piwik) 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 (Piwik) dashboard.
  • We also recommend that you track how people use your Audio player on your website, with the official Media Analytics for Matomo (Piwik). ​​​​​​​​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 (Piwik) using our Log Analytics solution.

How do I enable tracking for visitors that have disabled Javascript?

By Default, if you use the standard Javascript Tracking Tag, Matomo (Piwik) will only track visitors with Javascript Enabled in their web browser. You can however configure Matomo to also track users who have disabled Javascript: to do so, edit the Matomo Tracking Tag <noscript> and change:

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

Replace with the following:

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

After making this change and adding &rec=1, visitors with disabled Javascript will execute the noscript and will load the piwik.php image and will have their traffic recorded in Matomo (Piwik).


  • as this image tracking code does not use Javascript, Matomo (Piwik) will not be able to track some user information such as screen resolutions, browser plugins and page titles. The image tracker code also does not create first party tracking cookies which results in some information being lost.

  • the most famous bots will still be ignored with this technique. To force Matomo (Piwik) to track all bots, add the parameter &bots=1 to the tracking URL, eg:

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

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 (Piwik) 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?

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 (Piwik), 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 (Piwik) to add geo location functionality to your Apps, for example.

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 (Piwik) 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 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 (Piwik) 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 (Piwik) 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  `piwik_log_link_visit_action` ADD INDEX `transitions_url` (  `idaction_url` ,  `idsite` ,  `server_time` );
ALTER TABLE  `piwik_log_link_visit_action` ADD INDEX `transitions_url_ref` (  `idaction_url_ref` ,  `idsite` ,  `server_time` );
ALTER TABLE  `piwik_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 (Piwik) consultants who are experts in scaling and configuring Matomo.

Related user guides: learn more about Matomo (Piwik) 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 (Piwik) server. For any bug report or feature request, please post them in the plugin’s issue tracker.

Contact Matomo (Piwik) 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 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.

To use Redis as a cache follow these steps:

  • Make sure you are using at least Matomo (Piwik) 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 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 (Piwik) 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 = ""

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 (Piwik), please submit a feature request to Matomo.

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

Any questions?

Many answers and more information about Matomo you can find here:

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