Review the advertising sellers your website declares—and find formatting issues to fix.
Check your authorized ad sellers.
ads.txt helps website publishers declare which advertising systems and seller accounts are authorized to sell their ad space. Enter your domain to review the public file at /ads.txt.
We check seller domains, account IDs, DIRECT and RESELLER relationships, optional certification IDs, and declarations such as OWNERDOMAIN and MANAGERDOMAIN. Your report highlights formatting errors, duplicate records, and suggestions by line number.
This checks the file’s syntax and declarations. It does not verify seller identities, account ownership, certification, ad approval, or revenue.
Report details
Report details
Errors & recommendations
Collected source
Select an issue’s line number to find it below.
A practical review of your advertising file
Seller records
Review advertising system domains, publisher account IDs, relationship types, and optional certification identifiers.
Ownership & management
Inspect owner and manager declarations, contact information, subdomain pointers, and inventory partner references.
Clear corrections
Find errors and duplicate records by line number, inspect the collected source, and print or save your report.