Fiction: AdSense disables accounts and issues warnings at random.

Fact: We rely upon a detailed set of guidelines when looking at policy violations, and these policies are published in our Help Center. Our intent is to keep Google's content and search networks safe and clean for our advertisers, users and publishers. We seek to be as transparent and consistent with our decision making.

Part of our job of monitoring the AdSense network involves working with publishers to identify and address potential issues. We understand that there are a lot of policies to take into account, and so for minor policy violations our first step will be to issue a warning. The reasons a publisher might receive a warning will vary, but in general they tend to be for violations that can be fixed fairly easily. Examples of these violations range from deceptively labeling ads “Today’s hot deals” to having a minimal amount of adult-content comment spam in a forum. Publishers, after receiving a warning, are given three days to fix their violations. If changes are not made in that time, ad serving will be disabled to the violating site.

There are some situations when we would need to disable ad serving to a site without first sending a warning. We usually reserve this action for egregious violations like adult content, copyright infringement, as well as cases of extreme violence and gore. We may also disable ads to a site when we find a violation that we’ve already contacted a publisher about in the past.

The final and most severe action that our teams can take is to close down an account completely. This normally only happens when we find that a publisher’s entire network consists of violating sites or for repeat policy offenders. If you have received a policy notification from the AdSense team, please visit this help center entry for additional information.

We want to point out that notifications that result from the previously mentioned policy violations are different from notifications sent because of issues with invalid click activity, which are monitored by Google's Ad Traffic Quality Team. Invalid click activity consists of any clicks or impressions that may artificially inflate an advertiser's costs or a publisher's earnings, and for which we decide not to charge the advertiser. For more information about invalid clicks and impressions, please refer to this page, which includes a link to our FAQ page for accounts disabled due to invalid activity.

Lastly, we highly recommend reviewing these guidelines to help avoid policy violations, and to help keep your AdSense account in good standing.

Posted by Andres Schabelman - AdSense Policy team