An affiliate attribution method that records conversions by direct server-to-server communication (postback) rather than browser-side pixels or cookies. The conversion event fires from the brand's server to the network's server at order completion, bypassing ad blockers, Safari ITP, iOS ATT, and browser privacy restrictions. Typically recovers 15-25% of conversions lost to pixel tracking gaps. Implementation requires capturing the network's click ID parameter in first-party context and firing a postback URL at order confirmation.
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