How to opt out of interest-based advertising
You can opt out of showing ads that are based on user interest and demographic categories (for example, 'sports enthusiasts' or 'inferred age: 18-34'). In turn, Google will not use visitation information from your sites to help create interest and demographic categories. However, you cannot opt out of showing ads to users based on their previous interactions with the advertiser, such as visits to an advertiser's website.
To opt out of ads based on user interest and demographic categories:
- Visit the Allow & block ads tab.
- In the sidebar, make sure “Content” is selected.
- In the horizontal bar across the top of the page, click the Ad serving tab.
- Under the "Interest-based Ads" header, select the appropriate option.
Ads you've blocked by category, by advertiser URL, or using the Ad review center will not appear to users through interest-based advertising.