ads.txt Validator

IAB-compliant ads.txt file validator

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About ads.txt Validator

Check your ads.txt file for proper IAB Tech Lab compliance. Validates each record for correct domain, account ID, and seller type (DIRECT/RESELLER) fields. Detects unknown variables, invalid domains, and missing fields. Counts unique domains and record statistics.

ads.txt Validator Features

  • IAB record validation
  • DIRECT/RESELLER checking
  • Domain validation
  • 100% private and client-side processing

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