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Free DNS CAA Record Checker Tool

Look up the CAA records published for a domain and review which certificate authorities are authorized to issue certificates for it.

What the CAA check shows

  • Published values: Review flags, tags, values, and time-to-live data returned by DNS.
  • Certificate-authority policy: See the issuers allowed for normal and wildcard certificates.
  • Additional policy tags: Identify issuewild and iodef tags when they are published.

What is a CAA record?

A CAA record lets a domain owner specify which certificate authorities may issue TLS certificates for the domain. Certificate authorities must check the applicable CAA policy before issuance.

Benefits of Regularly Checking CAA Records:

  • Enhanced Web Security: Helps prevent unauthorized issuance of SSL/TLS certificates.
  • Maintain Control Over Certificates: Ensures that only your chosen CAs can issue certificates for your domain.
  • Trust and Credibility: Correct CAA records help in building trust with your users and customers.

How to manage CAA records in our DNS interface

anycast.io CAA DNS Record