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 investing.com
Found
Selector: google
(TXT on google._domainkey.investing.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyvQdtOcNEmx2lgRTtHnPeQiZK4dacWtMN3yB0mvEmPM1lA+jxOW8ggOzT8Ywd5Mgf58Ei44VU/xT4ApmLzl14WL7tAmM46guzraO3su4LshCCmGfE3dpa8iDw0gqh/iA3PS97PA+TbFLd4AGVWM0z0AutEKfjJBVMdjiEtOvWAHp5WDhJ+qitmlfphm/qP+LcrQNxAwkCLYxgSGtU2T7XZZx6PTtHQYqY3rqTPr5RJxul84FAP8yh+stu3xZPejZkJ/or1X/i02wWy7QXtUE9W7R3M2ASxJ2k0bq2xinLXGuKx+BOD6gVWO16IVEGGGSdfQuctf7UbS6j3j/lw9KeQIDAQAB
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.