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GA4 Measurement Quality
GA4 attribution, cross-domain tracking, Consent Mode, channel grouping, chatbot referrals, and reporting quality checks.
GA4 is useful when it is treated as one part of a larger measurement system. The question is not whether GA4 has a number; it is whether the event, consent, session, source, and CRM context behind that number can be trusted.
Related writing
Curated field notes and guides that support this topic hub.
How to Tell If Your GA4 Attribution Is Wrong
Your GA4 reports show strong performance, but revenue doesn't match. Here's how to diagnose when GA4 attribution is inflating your numbers and what to do about it.
Cross-Domain Tracking in GA4: Why 30% of Your Journeys Show as Direct
When users move between your domains, GA4 often loses the session thread and attributes conversions to direct traffic instead of the original source. Here's how to diagnose and fix broken cross-domain tracking.
GA4 added an AI Assistant channel. Check your referral numbers.
GA4 is separating some ChatGPT, Gemini, and Claude visits from Referral, which can change reports and dashboards without anyone touching the property.
HIPAA and Google Analytics: What You Can and Can't Track
Google won't sign a BAA for GA4 — that's the hard stop. What GA4 collects by default, how it becomes PHI in healthcare contexts, and what a compliant stack looks like.
Google Tag Gateway for Advertisers Goes GA: What Changes in Your GTM Stack
Google Tag Gateway for Advertisers (formerly First-Party Mode) is now generally available in GTM, with custom domains, Cloudflare rollback, and a Floodlight consent change. Here's what to check first.
Consent Mode v2 and Server-Side Tracking: How They Work Together
Consent Mode v2 and server-side tracking aren't competing solutions. Here's how they actually connect, and why running server-side GTM doesn't make you exempt from consent gating.