Blocking unwanted ads
To block impressions for unwanted ads use the 
Settings → Blockings tab. The set restrictions apply to Yandex Direct ads in all mobile apps of the account.
You can block ads:
- By site domain.
- By mobile app Bundle ID.
Specify domains or Bundle IDs separated by commas and click the 
button on the right. All changes to settings automatically take effect 2 hours after saving them.
How it looks in the interface
To cancel a blocking, find it in the Domains and Bundle IDs list and delete it using the 
element (appears on hover).
Note
Note that disabling ads that link to certain domains may result in a reduced number of ads being displayed and potentially may reduce your revenue from ad placement.
You can also disable unsolicited ads in your mobile app by changing the app settings.