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Check your ads.txt in seconds
A single wrong line in ads.txt can quietly cut off buyers. Type your domain and we'll check the file the way an ad exchange reads it.
What it checks
Is the file there?
Whether yourdomain/ads.txt answers at all, or sends back a web page instead of the file.
Is every line valid?
Each seller line needs a domain, an account ID and DIRECT or RESELLER. We flag lines buyers will ignore.
Duplicates and conflicts
The same seller listed twice, or listed as both DIRECT and RESELLER.
Google lines
Google account IDs must look like pub- followed by 16 digits, without the ca- prefix.
Missing lines
Paste the lines a partner asked you to add, and see which ones aren't in your file yet.
New to ads.txt?
Read our guide to ads.txt or the short definition in the glossary.