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 casinogiris.bet
Found
Selector: default
(TXT on default._domainkey.casinogiris.bet)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyUENEKvfxPeSF8EQbEhCYn2emb7MdAU0/vRr1O7pS8aYeFpAN5306yiORjG5jloMEVtwSn7fzq+8xk6STe9CAz4LHNIoGLEKvMoFHnFwFyf3z9Mjm+rURwuMAXLaL520d9BN7SBtnREd1HosB3eg8AbaOGCi49S6H6zeoWkqumGFZ6TbgUhsUuFLE7BT7EXPawaDCfS9kUm7Bv2QxcSpfwMSSONZ1Bt/x7l+V4yiCJIIQIb3Z7MxylJWMgzLmihGq6ZUZToPv9L5k0qsAwlIU6JT2F6I4HFZg2vrvnTfqlTfv4uzGghTS7EHHYt3inVgSvs0jbqdS8OnXN6PDvhi8wIDAQAB;
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.