Ads.txt that stands for Authorized Digital Sellers, allows publishers to sell their advertising inventory through sellers that they identified as authorized.
IAB Tech Lab that launched Ads.txt defines it as a file that specifies a mechanism for publishers to list their authorized digital sellers, in order to fight against fraud and misrepresented domains.
Ads.txt that stands for Authorized Digital Sellers, allows publishers to sell their advertising inventory through sellers that they identified as authorized. It allows them to better control who is allowed to sell ads and prevent counterfeit inventory from being offered to advertisers.
Providing transparency to all actors implied in the Supply Chain, Ads.txt helps publishers to receive more demands from advertisers, budget that might otherwise be gone toward the counterfeit inventory.
In our onboarding process, we send all the lines of SSPs we are going to connect to your inventory so that you can add them to your Ads.txt file.
The Ads.txt is crawled regularly by the robots of the SSPs. If a partner is missing, they will not be able to participate in the programmatic auctions. It is therefore essential to update this file each time partners are added or deleted.
At Opti Digital, we regularly check the Ads.txt files of our publishers. In particular, we use the free Adstxt.guru tool to review this file and notify publishers of necessary updates.