The Measure Copilot Evidence Collector captures runtime analytics signals as they fire. Upload the export to your audit and get confirmed findings instead of inferred ones.
Chrome may show a "proceed with caution" prompt — normal for new extensions. Click "Continue to install".
Without vs. with the extension
DataLayer quality
Consent Mode signals
Purchase event params
CMP implementation
Add it to Chrome from the Web Store in one click. No account required.
Open the extension popup before you start browsing. It begins capturing dataLayer events, Consent Mode signals, and GA4/GTM IDs from that point forward.
Browse key pages — add to cart, checkout, purchase, or submit a lead form. The extension records every event it sees.
Click "Export evidence" in the popup. A JSON file downloads to your device. Takes 2 seconds.
Go to measurecopilot.com/audit, upload the file in the Chrome extension evidence field, and run the audit. Findings upgrade from Inferred to Confirmed.
All evidence is stored locally in your browser. Nothing is sent anywhere until you click export.
Every push intercepted in real time — page_view, add_to_cart, purchase, and custom events.
analytics_storage, ad_storage, ad_user_data, ad_personalization — default and updated states.
G-XXXXXXXXXX detected from page scripts, confirmed at runtime.
GTM-XXXXXXX detected from loaded scripts.
OneTrust, Cookiebot, Didomi, iubenda, CookieYes — fingerprinted from page signals.
add_to_cart, begin_checkout, purchase, generate_lead — observed or missing, not inferred.
Evidence stays in your browser's local storage only. The extension does not transmit anything to Measure Copilot or any third party automatically. Data leaves your device only when you explicitly click Export evidence. No passwords, cookies, payment details, or browsing history are ever collected.
Read the full privacy policy →Install the extension, run a journey, export — takes under 5 minutes.
Chrome may show a "proceed with caution" prompt — this is normal for new extensions. Click "Continue to install".