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 archive.org
Found
Selector: google
(TXT on google._domainkey.archive.org)
v=DKIM1; k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvvBxxOwvwCsCexjvfBc/26lbLlsujI1YXiODpeTYvcUqQwEG2ay9MjGjsNsdMt47EXkhv0k6C/J+9lZ1V2WHkCtONw7hQnjuUxjkAEfvVwfOR695UFYSnDqtjJvK8GuLlFqn/qUyy7vzddAmNbacq25AmnDJaKmQxhjP/YIQa80ErGdE03FTGpW2NxoUQ9dzLFXZwaep3/dmk2Vdqb28aZo9RIGImUfSPZejdhZU0bvquPwOEzzNkCkKaRDj7i+l1mHe2RXevLLX6Hp79pOzG2BtT86/hBgl/lBdQ6l5AS7uYmj63/peGLYRGwHw5dSGROq4pHNZE/vzP6NG6cs7CQIDAQAB
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.