Mastering Postback Tracking and S2S Conversion Tracking

Accurate conversion tracking is the backbone of any high-performing affiliate or partner marketing program. Postback tracking, also known as server-to-server (S2S) tracking, offers a privacy-friendly, robust way to record conversions without relying on client-side pixels. This article explains what postback and S2S tracking are, how they work, why they matter, and how to implement, troubleshoot, and choose platforms that support them.