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 0xequity.biz
Found
Selector: default
(TXT on default._domainkey.0xequity.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7x4bXBvW615ij4de1Rg3NQqKkSw4UlXkOGJM7A3jLl5tAXDha3LKtMfSaR6tpSta29R2nI9QAawgNgCFU85Xd1O6TaPe88bzcf0AAAF8v917yEixC+BxEp3UK+F5CmMkdUP4AWRQAQmY25A4Qmap1ie1y4kzecMABGv9NRcxThhSCICZ66ZyNFXZYwdo2U0DODdb6uR2xDWnb5UfcezXXlsePq3YbDm8cbcYB33k3tkdMS4M02nfyr1P8EtWsvOBuMp5gEp2Uervlbn8i+j/Jef0WRVYdImB8Nlb7sZmhkCUYJoJESZ4ERz2nkQWGYIvQt9tLDZeR65v3vAsvhPwgwIDAQAB;
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.