As third-party cookies disappear, publishers require privacy-first solutions for header bidding. The Mixpeek RTD module offers a rapid method to enrich Prebid bid requests with contextual and adjacency signals, eliminating reliance on user identifiers while maintaining auction speed. This integration installs via NPM or CDN and configures within Prebid's `setConfig`.

It injects IAB v3.0 categories, keywords, and brand safety scores directly into OpenRTB fields. Specifically, data populates `ortb2.site.content` and `ortb2Imp.ext.data`. DSPs consume these signals to target content categories, enforce competitive separation, and verify brand safety without custom backend integration.

Publishers can validate the setup using 'shadow mode,' which logs data without impacting live revenue. This 15-minute implementation ensures compliance and maximizes bid density in a cookieless environment.