Pages regularly appear and disappear on websites, other websites might link to wrong URLs on your website, etc. You can track with 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 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 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!

Any questions?

Many answers and more information about Piwik You can find here:

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