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Ads.txt Generator

Build an ads.txt file that lists the advertising systems allowed to sell your inventory.

Build an ads.txt file

Sellers added: 0
Seller records: none
Only the seller account is required for a record; the tag identifier and the relationship are optional extras.

How to use the Ads.txt Generator

  1. Enter your publisher domain and optional contact details.
  2. Add each seller account with its tag identifier and relationship value.
  3. Copy the finished ads.txt file to the root of your site.

Features

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Frequently Asked Questions

Common questions about the free online ads.txt generator.

It is a plain text file that lists the advertising systems allowed to sell your inventory, which helps block unauthorised resellers.
Upload it to the root of your domain so it is reachable at your domain followed by /ads.txt, without any extra folder.
DIRECT means the listed account sells your inventory directly. Use RESELLER when a network is authorised to resell on your behalf.
It is the certification authority identifier, a short tag that shows the seller is registered with that authority. It is optional.
Yes. Lines that start with a hash character are treated as comments and are ignored by buyers and by crawlers.
They are optional variables. Contact records a contact address and owner domain names the entity that owns the inventory.
No. Each domain serves exactly one ads.txt file, although the address can be redirected if you cannot edit the root.
Not directly. It improves transparency and can reduce losses caused by counterfeit or unauthorised inventory being sold.

Last updated: October 10, 2026