Retrieving Information about the Ad Response

For more detailed debugging and logging, such as programmatically obtaining an ad response identifier for blocking ads, successfully loaded ads provide a GADResponseInfo object. This contains information about the ad that was loaded. On interstitial ads for example, this information is obtained via the responseInfo property.

Properties of the GADResponseInfo object include:
adNetworkClassName
The class name of the ad network that fetched the current ad. Values that can be returned from this property include:

Ad Source Class name
Google Ads Value of GADGoogleAdNetworkClassName
Rewarded Custom events Your custom event's class name
All other custom events Value of GADCustomEventAdNetworkClassName
Mediation The mediation adapter's class name