There is/was a standardized way similar to this: https://en.m.wikipedia.org/wiki/P3P https://en.m.wikipedia.org/wiki/P3P It was complicated and never caught on

There is/was a standardized way similar to this: https://en.m.wikipedia.org/wiki/P3P https://en.m.wikipedia.org/wiki/P3P It was complicated and never caught on. I'd say the basic problem (visible also in the DNT fiasco) is that if you ask a user in a global and easy to understand way if he wants to accept tracking cookies, he'll say "no" once and for all, and that's it: you just disabled all tracking cookies everywhere. The only way it can work from the point of view of the tracking companies is to use these obnoxious dialogs everywhere: that way, at least some people will accept the cookies from lazyness.