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 btcprofits.biz
Found
Selector: default
(TXT on default._domainkey.btcprofits.biz)
v=DKIM1; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEApWnVjyQg1gJ/pBetds5j2TiUW/2vxHBcEs9n0PQnp2LV8ka5zTbDP0yTRd4eMs8TEtT59fTvATYOXsojjyDkfYv88gJDoIc+M/6klfUU1bcHjVvDkfAOtNQDhVshZBgBrQHoQJBP60Ohkl3K8hZRRDUcpbZgu2Ht7V955MJ07jE4/S1t7SW6WJXHdz5i5ZQ2ERToUvBgu5R8p3C+0SuVV46gsObr5JwPvfSTf95LZboELcHI2AcZi3VEfVtOVZQkJw5x+aMdI1i9CwodMrUoJLMplg75glukWIIfbF9q8ePz6j0EMPUgUZSaKsSWKDGyxrvgWnjjPmHzijg7xFFS5QIDAQAB
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.