First-Party Attribution Architecture
A technical guide to attribution that survives iOS and the end of third-party cookies: first-party collection, server-side delivery, and the tracking plan that makes it trustworthy.
What's inside
Your attribution is decaying with every browser update. This technical guide documents the architecture that holds up: first-party data you collect and own, delivered server-side to the ad platforms, with a tracking plan rigorous enough to trust.
It covers:
- The three layers: first-party collection, server-side event delivery via the platforms' conversion APIs, and an owned source of truth.
- The tracking plan, the artifact that separates clean deployments from mystery numbers, with a template.
- Conversions API patterns: deduplication, identifier passing, value tracking, and consent handling done right.
- A QA matrix for verifying every conversion path before you trust the data.
- Where Native Bridge fits: how we operationalize this architecture and hand you a system you own.
It is the implementation companion to our teardown, post-cookie attribution architecture.
Written for the performance marketing lead or RevOps engineer who has to make the numbers honest again.
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