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Consent management decides which advertising platforms receive user data based on cookie banner choices. With traditional client-side tracking, this happens in the browser using JavaScript—a model increasingly difficult to implement correctly as privacy regulations tighten. Server-side consent management moves this decision to your infrastructure. Your server checks the user's consent status before forwarding events to Facebook CAPI, Google Ads, TikTok Events API, or analytics platforms. Client-Side Consent Problems Client-side consent requires coordinating multiple scripts: 1. Cookie banner collects user choice 2. Tag manager reads consent state 3. Each tracking pixel checks consent before firing 4. Platforms must trust your JavaScript implementation This creates enforcement gaps. Ad blockers disable tracking scripts but often don't block cookie banners, leaving consent recorded but no tracking to enforce it against. Users can manipulate browser storage to bypass consent checks. And if your JavaScript loads slowly, pixels might fire before consent decisions register. Industry data...