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Description
Debug Matomo and Matomo Tag Manager from a DevTools panel: hits, tags, data layers, tracker settings, cookies and containers. Debug Tools for Matomo adds a Matomo panel to your browser's DevTools, next to Console and Network, to debug a Matomo implementation, whether it uses the JavaScript tracker directly or Matomo Tag Manager. WORKS ON ANY SITE, WITH NO SITE ACCESS • Overview: the trackers and Tag Manager containers on the page (and whether each container file came from the browser cache), the privacy and consent mode of each tracker, the application type (classic site or single-page application, with its framework and router), hit counts and a list of detected problems: a _paq queue without matomo.js, duplicate trackers, failed hits, containers outside the live environment, cookies set before consent, route changes without a page view, and more. • Hits: every request sent to Matomo, classified by type and decoded parameter by parameter, with single-page application route changes shown in the timeline. • Tags: every Tag Manager tag with readable names (even in published containers), fired tags first, their triggers and conditions, event parameters, Custom HTML with syntax colors, and their firings. • Data Layers: _mtm and dataLayer pushes with the merged state after each one, gtag() calls with named arguments, and what Tag Manager does with a GTM-style dataLayer. • _paq: every tracking call in order, with named arguments, including the calls made by Tag Manager's Matomo tags. • Tracker and Cookies: tracker settings, and Matomo cookies decoded field by field, with their raw and URL-decoded values. • Container: a searchable explorer of tags, triggers and variables with their relationships, and on-demand variable evaluation. • Privacy: a privacy checkup of the implementation (cookie mode and consent, cookie lifetime, user IDs, personal data in hits, campaign parameters, cross-domain linking, tracker privacy settings), exportable as an HTML report. FULL CAPTURE, ON THE SITES YOU CHOOSE One click asks for access to the inspected site only. A read-only script then records every _paq command, data layer push, trigger evaluation (with the observed values) and tag firing. Hits are linked to the tag that sent them, and tags explain why they did not fire. Turn it off from the same button. TOOLBAR BUTTON Tells whether Matomo is on the current tab (the icon turns from grey to color) and how to open the panel. PRIVATE BY DESIGN No data leaves your browser. No analytics, no server, no remote code. Privacy policy: https://openmost.com/legal/privacy/debug-tools-for-matomo Debug Tools for Matomo is an independent project by Openmost. It is not affiliated with, endorsed or sponsored by Matomo or InnoCraft. Matomo® is a registered trademark of InnoCraft Ltd.