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 bodybuilding.com
Found
Selector: selector1
(TXT on selector1._domainkey.bodybuilding.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDCUoiC386P2nRpL6tXWij+fKlsEGyTAPXWVY34ZPHY2F2rqC9nPPpMsHSihTk8wi8rUSr5iW9niDB2Wq1Dd1YA+KHgQf9uj8A8PB8sxmAHOvYKOcXdLVlhMN6BU2jLCJGs+PKQ6v5hozg30V5v12ZPd4mcBkal2oF1CSb0froAJwIDAQAB; n=1024,1453952831,1469677631
Selector: google
(TXT on google._domainkey.bodybuilding.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAsgBp3gOWV0JHHXVhY5fZe/s4mKNcVjwO70YgSaZRedgApXCXNYxmwa3xaaDV+5+VajTC2tAOdCC6zdbh2UvDMCof0VCWknKvSZua40yrKEWv48EPoIefdqxyWT0n0/GzQeaJND006y+CVTRX4ENxKiVHU7YhS8wKabBGmNEaTKYcxPouOKlw9J5DA14JGGqmNcAdvafcFDmvj63PC9M1KtntU5YAgmxo9m7vAVQTK8YDX6FYjA47UJ+6FA/UIM8yL7NxDuNKToGamBmC30hWEfjgfggDXMT3EFrnrbRajuE490jmWubK31nKwQpy7zDgm0F8qPDPJjCzb6hnfw7KCQIDAQAB
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.