Finding and fixing what goes wrong in a tracking setup. 8 articles
What each request type and status badge in your logs actually means — including why some 400s are shown as benign.
Reprocessing delays, split tracking paths, server-to-server events without session data, missing referrers and consent: how to tell them apart and fix each one.
Safari 16.4 caps cookies from a tagging subdomain on another server at 7 days. How to check it, and how serving tracking from your own domain fixes it.
Tracking before the banner is answered, or after a refusal: the usual causes and how to fix them in Google Tag Manager.
The five causes of page views and conversions counted twice, and how to remove each.
GA4 and Google Ads hits that go straight to Google instead of your tagging server, and how to set the server container URL right.
Where the debug session attaches, why the first server container URL matters, test hits from your site and from Shopify checkout, and what to check when the preview stays empty.
How to verify GA4, Ads and Floodlight tags under a granted state — and why this must never stay on for real traffic.