We also reserve the right to adjust a publisher’s earnings in the case that an advertiser who advertised on the publisher’s website defaults on payment. These advertisers may have used stolen credit cards or otherwise defaulted on payments. Google works diligently to ensure that these instances are rare in order to maintain a safe ecosystem for users, publishers, and advertisers.
To maintain the integrity of our invalid activity detection system and prevent users from circumventing the system, we aren't able to provide details about how much was adjusted per day or per site. We have these invalid activity protections in place to keep our AdSense network a safe and useful environment for advertisers, publishers, and users.
However, here are some steps to help you identify and reduce invalid activity:
- Use Google Analytics to investigate any changes in traffic sources over the last 90 days. Look out for spikes in traffic/downloads from unknown sources.
- Review the AdSense Policy beginner's guide. Please go through the Ad placement policies. Invalid activity often results from poor ad implementation, which you may be able to fix.
- Report invalid clicks or impressions on your ads to our traffic quality specialists using this invalid activity form. In your report, please provide as much information as possible. The details you provide will aid our traffic quality team in investigating your account. You may not receive a personal response from them, but a note will be added to your account for future reference.