Ads.txt

Ads.txt is a special file promoted by the Internet Advertising Bureau to let a site announce its officially endorsed ad networks and the associated account IDs in order to prevent fraud. It is placed in the root directory of a site similarly to robots.txt. The filename in actual use is all-lowercase, ads.txt, but the spec refers to the standard as the capitalized Ads.txt.

Specs

 * Official spec v1.0.1

Sample Files

 * New York Times ads.txt

Other links and references

 * Official site