Google Ads run different auctions for each ad location
Google updated its documentation on how the Google Ads auction works, stating that separate auctions are run for each ad location. This change, which was not previously mentioned, has sparked discussion in the PPC community about its implications. The update clarifies that ads in different positions, such as top and bottom, are selected through independent auctions. While Google has not officially explained the change, it may relate to a previous update redefining ‘top ads’ and ongoing experiments with ad placements. PPC experts worry this could favor larger advertisers and impact SERP quality. Google later confirmed that separate auctions have been in place for years but updated the documentation for transparency. They are also testing double-serving ads but have not announced any immediate changes.

