Moved GA4, Google Ads and Meta CAPI onto a first-party server container on a subdomain. Recovered roughly 22% of previously-blocked events and cut third-party script weight on the marketing site by 40%.
A B2B SaaS platform was losing roughly 22% of marketing analytics events to ad blockers. Their attribution data was systematically under-counting the channels that drove signups.
Ad blockers were silently dropping GA4 and Google Ads conversion tags for a significant portion of visitors. The marketing team’s channel attribution was skewed, and they were unknowingly over-investing in channels that only appeared to perform because blocker-heavy channels were under-reported.
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