Reference / Glossary / Infrastructure and standards
Privacy Sandbox
Google's set of proposed browser and Android technologies to support advertising without cross-site tracking: the Topics API for interest signals, Protected Audience (formerly FLEDGE) for on-device remarketing auctions, and Attribution Reporting for aggregated measurement. Google dropped the third-party cookie deprecation in April 2025 and in October 2025 announced it would retire most of the APIs, including Topics, Protected Audience and Attribution Reporting; CHIPS, FedCM and Private State Tokens remain.
Related terms
Cite this entry:
Agency Echelon. "Privacy Sandbox." Agency Echelon Reference, reviewed October 2026. https://agencyechelon.com/reference/glossary/privacy-sandbox/