Advertisers using the Display Network can use the reporting table in the Placements section of the Display tab to determine the:
- the frequency at which an ad is shown for a given user
- country of residence of users who have seen their ad
- the site URL where users have seen their ad
- Internet Protocol (IP) addresses of users who have seen their ad
https://www.youtube.com/watch?v=mB4WAHALSc4