Advertising - Ads.txt

About

Ads.txt is a text file hosted at the root of a website that identify the ad network that are authorized to sell the website inventory.

It identifies and publicly declare who is authorized to sell your inventory.

The file is crawlable by:

ads.txt has similar functionality than robots.txt but for ads,

The data required to populate the file comes from the OpenRTB protocol

Authorized Digital Sellers, or ads.txt, is an initiative from the IAB to improve transparency in programmatic advertising.

The ads.txt file declare the account for each:

that’s authorized to sell your inventory.

Relationship

The following relationship may be defined:

  • Domain owners who sell on exchanges through their own accounts
  • Networks and auction houses who programmatically sell on behalf of domain owners
  • Content syndication partnerships where multiple authorized sellers represent the same inventory

Format

Each row represents a separate seller account that can be authorized to sell your inventory.

Columns by order:

  1. Ad Network Domain - The first field contains the name of the advertising system
  2. Account Type (Direct or Reseller) - The third field is the type of account or relationship.
    • Direct indicates that the publisher directly controls the account indicated in the second field, on the system in the first field.
    • Reseller indicates that the publisher has authorized another entity to control the account indicated in the second field, and to resell their ad space via the system in the first field.
  3. Certification Authority ID (optional) - The fourth field is optional. It allows a certification authority ID to be added. This means that the publisher has authorized another entity to control the account indicated in the second field, and to resell their ad space via the system in the first field.

Example

extract from https://gerardnico.com/ads.txt

Google.com, pub-5995202563537249, RESELLER, f08c47fec0942fa0 #comments
districtm.io, 100604, DIRECT

where for the first line:

Management

Documentation


Powered by ComboStrap