DKIM Record Checker
DKIM signs outgoing emails. Receivers verify the signature using a public key in DNS.
DKIM lives on <selector>._domainkey.<domain>. If selector is empty, we try common ones.
Result for superbet.blog
Found
Selector: default
(TXT on default._domainkey.superbet.blog)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAw+fiv5cHbbnfLwKYEoQCUR6lQw97U5nIG6lHKmMh+B4mS2T3vu56Jf0AYILTtYbmsQqqxj5wbwDtOIcFrlnfkK7+dJ+Q4OYpb50Pc6I0M1oR+P1cNcv9KPbewMy9dePW9gV+9GqWRKoSLAgxLCJBH+8G5Im/jW2lW5wqOz8xKbtUnTBgjp9x2/W8inl0sVT2jV+3BnCv/mGZAg1KXiHw4Zx+Gtq3vi71CLKQREpuxsh1i3VpvVTLyMhK2NUbWC/RiyzUq9FzazdlBx8UquYLCVuxZyxbR2LHi6Pfv5OcAkcw9DzyIBMtyhxml6NjZHQYvNqXF5AJWcLz77npzBKygwIDAQAB;
FAQ
Why does DKIM require a selector?
Selectors allow rotating keys and running multiple keys per domain.
Where is DKIM published?
TXT on <selector>._domainkey.<domain>.
DKIM record exists but emails still fail DKIM?
Signing may be disabled or the selector used in email differs from DNS.
Do I need DKIM if I have SPF?
Yes, many providers use both for best deliverability and DMARC alignment.
Can I have multiple DKIM selectors?
Yes, that is common for key rotation or multiple senders.
What is DKIM?
DKIM (DomainKeys Identified Mail) adds a cryptographic signature to outgoing emails. DNS stores a public key that allows receivers to verify authenticity.
Example
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0B...
Common mistakes
- Wrong selector (the record exists but under a different selector).
- Key is split incorrectly across multiple TXT chunks (some DNS UIs break it).
- Publishing DKIM but not enabling signing on the mail provider.