Sep 22, 2026•7 min read#GA4#Next.js#Analytics
Why GA4 Strips UTM Parameters on SPA Route Transitions (And How to Fix It)
Diagnose why Next.js App Router and SPA client transitions lose UTM campaign attribution, causing paid traffic to register as (direct) / (none), with battle-tested session persistence fixes.
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OmniSEO EngineeringTechnical SEO & Analytics Architecture
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