From Google's OpenRTB spec (https://developers.google.com/authorized-buyers/rtb/openrtb-guide#site https://developers.google.com/authorized-buyers/rtb/openrtb-.

From Google's OpenRTB spec (https://developers.google.com/authorized-buyers/rtb/openrtb-guide#site https://developers.google.com/authorized-buyers/rtb/openrtb-...): > Site > This object is present in the bid request when the impression will be rendered on a website rather than a non-browser application. Contains a "page" field: > URL of the page where the impression will be shown with URL parameters removed. EDIT: If you don't think that counts as personal info then that's that, just trying to prove GP's claim that Google will happily tell a bunch of advertisers that you're visiting a porn website.