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ads.txt
New York, New York, United States · Founded 2017
Sourced & current · updated Sep 28, 2026
IAB Tech Lab standard that lets publishers list the sellers authorized to sell their inventory, to combat domain spoofing.
Where they sit
Ad Fraud Prevention
The dominant open industry standard for publisher inventory authorization, maintained by IAB Tech Lab and adopted by millions of publisher domains globally.
Ownership
Parent: IAB Tech Lab