The app-ads.txt meets the requirements for ads distributed through mobile app stores, connected television app stores, or other application distribution channels.
https://iabtechlab.com/ads-txt/
Advertising
Get access to data on 132,931 websites App-Ads.txt Customers. We know of 73,917 live websites using App-Ads.txt and an additional 59,014 sites that used App-Ads.txt historically and 37,671 websites in the United States.
Get a list of 132,931 websites using App-Ads.txt which includes location information, hosting data, contact details, 73,917 currently live websites and an additional 308,642 domains that redirect to sites in this list. 59,014 sites that used this technology previouslyand 37,671 websites in the United States currently using App-Ads.txt.
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