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 1casino.bet
Found
Selector: default
(TXT on default._domainkey.1casino.bet)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA34DVtXZbLlTD/jbQd3RvLGrB2zEHF1fQ2NyB68f63eAuEz0kOZNtbvqP7fZYaX8Q1EXm2m+zW4s8PIQc6Dy47eLsEH+o2yVI7ZsWFAlH16R0rOc6HhOLKnYNMMsYddfTEFgFd9TxeX+vCrQFEDE3Z8Z7cgQaI61ZwJJVobic/tKi51UYvWzt+0v7c3y/pVw4BWpxaFuJ3ocfGxcMKKvqNFj4M2EMgP6xF2VRC9pu9mZ2md/Wep6ffC/p9IAaTO1TZt/9D4wXG3NWjW364agF9fWxbuE/pa/Jpoz9bPtPfCMe736HIsgCmm0VUjDzQ+oBfClrWBMyE5AbocNmaaCSrQIDAQAB;
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.