AuditTag

AuditTag reads the pages your ads land on, tells you which tracking tags are actually there, and writes the on-page fixes as files you review. It does not log in, and it does not pretend a snippet is a sale. The free audit reads up to 25 public pages in about a minute and finds GA4, Google Tag Manager, Google Ads, the Meta Pixel and leftover Universal Analytics, plus the SEO basics that cost clicks. Built and run by one developer in the UK.