If Google has found content on your site in violation of their policies, you will likely receive an email stating that you are blacklisted. The email may or may not include the reason for the blacklist and it may or may not include examples of what content was the culprit.
Publishers often complain that the most difficult part of working with Google is their unresponsiveness when problems arise. Luckily for publishers at Monumetric, we have an inside relationship with Google and can work to gather details about the blacklists. At times, we are even able to overturn blacklists depending on the severity of the violation and the promptness of the removal of the content in question.
If Google does not overturn their decision, revenue will be impacted. Google supplies demand for the ads that are displayed on your site and provides the technology used to serve all ads from every advertiser. Most often, the site will only be blacklisted from the demand portion of Google and not the server. While this will still significantly hurt earning potential, it still allows other advertisers to participate in buying ads on your site. Other advertisers’ performance may decline as well if they are using Google’s approval list to guide where they use their ad spend.
If a ban goes as far as to block the server, no programmatic advertising from any partner would be possible. This ban is much less common but can escalate if violations are severe enough.