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 gclubcasino.bet
Found
Selector: default
(TXT on default._domainkey.gclubcasino.bet)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwmHzUJ+fxKJ3PTCHckzD5f6ju3V5+OSiks9cJP5gT8PWA2uZC0t/Qj87BeaQ3S3Sv6BYjIP1XmB/PLVLw8B22UDp7P0caLbk4VCeaVNyUo6/3SuHQCRdoEr9CJDsIxNUtzY7+xN8KjIo5a5kOj43QLPwgetC3Q0xvOSdda2k+udjsDn2+U24TefJ50jAUqRnp0U8Q1hDIEbCJJvUG3lXBy8AjgTQ+Ikn6APsrNTSH7p0s687RRDeMImoHqHM8GjucGrqsEVSl8azjbRVY0b8A48BJsZNrUBLOffU1y/dbUOol6QxuK4I9GYvZNV9nSuEsZY9CNNRsZ5tMHjlVp9ZgwIDAQAB;
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.