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 050.biz
Found
Selector: google
(TXT on google._domainkey.050.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAyDSgtH0IlSP5cQ5XqbSm3AyElO/7jPiGRZ/AsQF+UTJQI1ZTpsjExjmQ3H971/oPpAR5+ML86/U66jMroh37Ho4KR5cfswTMyH3Lqev0ZzvkcPNT91AWUNtbiI5GaaOZ3VJpK77bPBYizuY/6Efkvf5y8Wr8SeA0zbFZ+UZ5MRvlE+Df2hKz1xIOafKCXgULyYLC7wEfm1mFmrk12tyRkvpENyCVO+PsfzBv4o2quB2ZTctLrz6VdX3DuNrAEpDBPsaxlohGzGi3wkcriB9TDzbK5PJKkAy1Rf6v1bq2LDDeVJvou1mNLO+fV/lSMcuPln2BryDcAPvzHM+ClfHjvwIDAQAB
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.