WTF are private state tokens in Google’s Privacy Sandbox?
This article is part of a special Digiday editorial series to catch you up on the basics of Google’s phaseout of third-party cookies. More from the series →
The third-party cookie’s deprecation — and broader crackdown on cross-site tracking practices, such as device fingerprinting — comes with side effects. One side effect is losing the means for companies to combat bot traffic. To account for this consequence, Google’s Privacy Sandbox features a proposal for fighting fraudulent traffic called Private State Tokens.
Private State Tokens effectively have sites that are able to authenticate site visitors be the ones to vouch for those visitors’ authenticity so that they can be trusted by other sites. As broken down in this explainer video, it’s akin to a friend recommending a therapist to another friend — albeit with the web browser providing a privacy-preserving means for passing on that recommendation.
More in Marketing
The rise of pharma ad tech
Insiders say it comes at the cost of legacy platforms such as DSPs and SSPs.
Nike says it expects $986 million in IEEPA tariff refunds
The company said its North America business expects to recover $965 million in tariff refunds from the U.S. government.
Digiday+ Research: The marketers’ 2026 guide to creator marketing, including Duolingo, Ulta and YouTube
While Instagram, TikTok and YouTube remain dominant social platforms for influencer partnerships, creators are increasingly being used across other media channels, including retail media, CTV and display ads.