Apple WebKit privacy updates push ad measurement server-side — rethink tracking stacks now

Context

IAB Tech Lab's Rowena Lam explains how recent Apple WebKit changes restrict browser-based tracking, pushing advertising data collection and measurement toward server-side architectures. The shift affects how ad tech vendors, publishers and brands capture conversions and audience signals in Safari. Ad operations, measurement and privacy leads should read the original piece to assess their dependence on client-side tracking.