Declare authorized sellers with ads.txt/app-ads.txt

Coming soon: The Ad Manager UI option for app-ads.txt will be available soon.

Use Ad Manager to create ads.txt/app-ads.txt files to identify who is authorized to sell your inventory. Authorized Digital Sellers for Web, or ads.txt, is an IAB initiative to improve transparency in programmatic web advertising. Authorized Sellers for Apps, or app-ads.txt, extends compatibility to support ads shown in mobile apps.