Most GA4/GTM audit tools want Google OAuth to read your property from the inside, or hand you a static checklist. TagVitals asks for neither. Paste a URL, wait 30 seconds. It scrapes the rendered page and the public gtm.js container, parses it without regex, then checks consent mode, dual tagging, dataLayer order and conversions. The score comes from code, not the AI - Gemini only writes the fix steps. Free, no account, full PDF export. Built by a data analyst auditing client sites daily.