By a Performance Analytics Lead at a fintech affiliate platform in Tallinn
For ten years, affiliate link tracking relied on 3rd-party cookies and a prayer. These days, with Apple's ITP, Firefox's ETP and Chrome's privacy sandbox transforming the browser environment, that model quietly collapsed.
The replacement is server-side (S2S) infrastructure: a unique click ID passed into the brand's order flow, then returned through a callback URL the moment a conversion is registered. No cookie, no pixel dependence, no invisible commission leakage.
Mature affiliate tracking software is far more than a link redirector with a admin panel attached on top.