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Protected Audience API (FLEDGE)
DefunctMountain View, California, United States · Founded 2019
Sourced & current · updated Sep 28, 2026
Privacy Sandbox API (formerly FLEDGE) for on-device remarketing auctions. Retired by Google on October 17, 2025.
Where they sit
Privacy-First AdvertisingProgrammatic Platform
Google-developed browser API positioned as the primary cookie-alternative for remarketing within the Chrome Privacy Sandbox initiative
Ownership
Parent: Google