Look through their real time bid request format to see what's actually sent. They have examples: https://developers.google.com/authorized-buyers/rtb/request-gui

Look through their real time bid request format to see what's actually sent. They have examples: https://developers.google.com/authorized-buyers/rtb/request-guide#google https://developers.google.com/authorized-buyers/rtb/request-... Do note though, that they can pull in additional data (from outside Google) through cookie matching: https://developers.google.com/authorized-buyers/rtb/cookie-guide https://developers.google.com/authorized-buyers/rtb/cookie-g...