You can use the serving restriction breakdown in your reports to compare personalized ads to non-personalized ads. This can help you understand which restrictions lead to ads not being personalized, and how these restrictions impact your revenue.
When you add this breakdown to your reports, you can view which serving restrictions are affecting your AdSense traffic and how:
- Limited ads: Ads that are limited because of the absence of consent for the use of cookies, mobile device identifiers, or other local storage.
- Restricted data processing (RDP): You've enabled restricted data processing (for example, using AdSense’s blocking controls).
- Non-personalized ads (NPA): You've enabled non-personalized ads
- Basic ads: IAB TCF v2.2 basic ads were served.
- Personalization disabled: May occur when iOS users have opted in to Limited Ad Tracking or haven’t provided consent under the AppTrackingTransparency (ATT), and there's no other available user identifiers. May occur when Android users opt out of ad personalization. Includes any other cases where personalization wasn’t feasible.
- No restriction: Ads are personalized using available user identifiers.
Some ad requests may fall into multiple categories in this list. In these cases, the ad request is sorted into the first applicable category according to the order shown here.
Ad serving restrictions due to policy issues are not included in the serving restriction breakdown. Review any policy issues and their effect on ad serving in the Policy center of your account.