Adsense Click Fraud Estimates by Third-Party Auditors

Shuman Ghosemajumder says that third-party auditors overestimate malicious clicks, the myth that Google profits from click fraud and just how the company can reassure advertisers without giving away the secrets of its click-fraud detection.

September 14, 2007

Google – The big problem with third-party auditors is that they continue to count “fictitious clicks,” clicks that Google doesn’t count as clicks at all, in click fraud estimates.

Here’s one major example: Users click on a Google ad on or an Adsense site. When they land on the advertiser’s site, they click on products, hitting the “back” button to go back to the landing page. Many browsers reload the landing page each time. We don’t count those as clicks, but third-party auditors actually register each click on the “back” button as another click on an ad, which grossly overestimates the number of ad clicks. Link.