Working on the Click Quality team, I’m one of a number of people who investigate suspicious traffic to determine if invalid click activity has occurred. These thorough investigations analyze a number of factors, including IP address, duplicate clicks, and various other clicking patterns. It is rare that invalid clicks are not detected by our automatic filters, but when we find them we immediately credit the advertiser's account. If you'd like us to investigate suspicious activity in your account, please fill out this form. If and when you do, providing detailed information, such as your web logs, will greatly assist with our investigation, so we ask that you include any reports indicating suspicious IP addresses, referrers, or requests. Our team will respond to you as soon as we complete our investigation of your account. And, please be patient, as a thorough investigation can take 3-5 business days.

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