DNS CAA Tester

DNS Certification Authority Authorization (CAA) uses your DNS records to let you specify which certificate authorities are allowed to issue certificates for the domains you own. Read More...

To test your domain's CAA record, enter it below.

✔ All looks good
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 0 iodef "mailto:royce@tycho.org"
 0 issue "letsencrypt.org"

If you're not quite ready to test your DNS CAA record yet, then perhaps worth a visit to:

sslmate for generating your DNS CAA records.
SSL Labs for testing your complete SSL config.