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 musictradehub.biz
Found
Selector: default
(TXT on default._domainkey.musictradehub.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnbas6bAIkt4ZKTi1yg2OdOAQjH2+NB/Grt7d13xc6+3qYS4psm4TOMX2Ye/WNHnXv3np7GK+fSCF/djySQi2GzCzcYaEAr2LKV1M6Mq1Tmdc489QKNCuikIupn4++I/4OffGeW554dqEemjAXN9FYE5Bp3TcSUA7nmFU42y/YVdaksolZENrS3c3glXXVohAwivdjCbkgA+QJNE+CpZxmLzrd83pLwChFZ+ig0PPjY3uRx7zIcJr3e1+tUHdz9xWV72dpLdh76jokDbNISLItqRNeuYzzTP0o2F3av0x2a2w11KPJib7aN9GCm4MMZDeM9REK65Q3Lfjy/3HnZEspwIDAQAB;
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.