From time to time we like to address common questions that many of our advertisers have. Here's a frequent one about how ad impressions are calculated:
Q: If my ad appears on the third page of a search result, does it count as an impression if a user does not go to the third page of search results?
A: No; impressions are only counted when a user visits a page that the ad appears on.
For more information about impressions and other important terms, check out our Help Center.