Check your Google Analytics and Google Tag Manager setup for tracking errors before they corrupt your reports. Inspect any container instantly, or run a full scored GA4 audit.
Paste a website URL or a GTM-XXXX container ID and see every tag, trigger and variable in seconds. No sign-in, nothing stored. The fastest way to check what a site is really tracking.
Open the free GTM Inspector →Connect your own GA4 and GTM and get an A–F graded audit across consent, data quality, governance and conversions — with a client-ready export. Your first audit is free.
Run a free audit →Confirms the GTM snippet is present and well-formed and that GA4 is receiving data — the single most common reason reports look empty or wrong.
Checks whether tags fire before consent (a GDPR problem) or run without an opt-out path (a US problem), and whether Consent Mode v2 signals are configured.
Looks at 30 days of live GA4 data for spam referrals, broken channel attribution, UTM misuse, and duplicate purchases that inflate revenue.
Cross-references GA4 key events against GTM tags to find gaps that quietly corrupt your reporting and your ad bidding.
Use the free GTM Inspector when you just want to see what tags are on a site — yours or a competitor’s — with no login.
Run the full audit when you want a scored, prioritised report on your own GA4 property and GTM container, with fixes you can act on and a deliverable you can share. See an example report first if you like.