Ads.txt

Ads.txt is a project designed by IAB Tech Lab to increase transparency in the programmatic advertising ecosystem. Ads.txt stands for Authorised Digital Sellers and is a simple, flexible and secure method that publishers and distributors can use to publicly declare the companies they authorise to sell their digital inventory, through a simple text file attached to a URL (an ads.txt file can be accessed by searching for examplewebsite.com/ads.txt). 

By creating a public record of Authorised Digital Sellers, ads.txt will create greater transparency in the inventory supply chain, and give publishers control over their inventory in the market, making it harder for bad actors to profit from selling counterfeit inventory across the ecosystem. As publishers adopt ads.txt, buyers will be able to more easily identify the Authorised Digital Sellers for a participating publisher, allowing brands to have confidence they are buying authentic publisher inventory. 

More information can be found here.

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