Wenn der gclid da ist - und Google Ads trotzdem nicht
Ein bekannter GA4-Bug: Sessions mit gültigem gclid landen als Organic oder Direct. So zeigt der Auditor das Problem auf Event-Level.
Attribution & Acquisition
How traffic sources, gclid, referrers and cross-domain tracking are attributed correctly.
Pillar article
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Attribution & acquisition quality
How the Auditor evaluates channel attribution and UTM quality in GA4 - Direct/Unassigned shares, gclid bugs, self-referrals and payment referrers.
Blog articles
"(not set)" in GA4 - where auditing really begins
When page titles, traffic sources or UTM parameters show up as (not set), the reports are already worthless. Here is how the auditor breaks the problem apart.
Unassigned traffic in GA4: finding and fixing the causes
What does Unassigned mean in GA4 and how do you get rid of it? Causes, fix and the distinction from (not set) - with an automatic check in the GA4 Auditor.
AI traffic in GA4: what the new "AI Assistants" channel shows - and what it misses
Since May 2026, GA4 groups ChatGPT & co. into the "AI Assistants" channel. Why the number is a floor, why Perplexity is missing - and how to audit your own property.
Self-Referrals - wenn deine eigene Domain als Quelle auftaucht
Self-Referrals in GA4 verfälschen Channel-Attribution lautlos. So erkennt der Auditor sie und so behebst du die Ursache.
Bank- und Payment-Provider als Referrer - die unsichtbare Channel-Verzerrung
Wenn PayPal, Klarna, SOFORT oder 3D-Secure als Quelle deiner Bestellungen erscheinen, ist die Attribution kaputt. So findet der Auditor das Problem.