If You Opt Out Of Ad Personalization, Google Will Delete Your Advertising ID You know that Google pushes ads to you based on analysis of concrete data collected from your account. For this, Google uses a special advertising ID. The data collected from your account serves not only for more relevant ads provision. Google also uses it for analytics and fraud prevention. So when for some reason you turn off ad personalization, Google won’t use your ID for pushing personalized ads. But it doesn’t mean the rest two processes are stopped as well. Thus, at the moment, the ad personalization and ...