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Sylvaxo S
Sylvaxo
Software Studio
Marketing10 min readPublished on 2024-05-19

Bypassing Browser Tracking Walls: A Complete Server-Side CAPI Blueprint

How privacy sandboxes and ad-blockers break client pixels, and how server-to-server event relays restore accurate ROAS attribution.

SA
Sophia Al-MansoorSenior Architect · Sylvaxo

## The Death of Third-Party Client Pixels

With iOS Safari ITP, Google Privacy Sandbox, and browser ad-blockers, client-side tracking pixels now miss up to 35% of legitimate conversion events.

Server-to-Server Event Pipeline

By relaying transaction events directly from your Node.js backend to Meta, Google, and LinkedIn Conversion APIs (CAPI), attribution integrity is restored without compromising customer privacy.

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