This isn't information that Google would sell to advertisers: the proposal is that it be available to all JavaScript in the browser: https://github.com/WICG/flo

This isn't information that Google would sell to advertisers: the proposal is that it be available to all JavaScript in the browser: https://github.com/WICG/floc https://github.com/WICG/floc What you get in return is that ad-supported sites you visit are better funded because they can show better-targeted advertising.