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 htrade.biz
Found
Selector: google
(TXT on google._domainkey.htrade.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmOwH6ljKeko/V/4ucyxOWkRPSeIyAd6tk1gzxNZgVYwD4sdn1EHxmm0VzT2iq6I+CABejr+8RpGP5DzN8UG38CSM1iZSLnNtgoSt82QZAi3h1aSGiDkm+L3mo61VeZRT/RTxAR2NqqdSXLWzh7JkSehT/qV+F+4JjKcGiiX4+h0mIk84mYH1zVR0ROn1d/67TAuw9glQtQHWNxni5QTOUNDtGOM1/2aycfyHYTC6cmrbqlieijGE0qTZ1Ya1RKioaTsq2ilmx596+GfZBlrUsW9ef3zfV3l5IXPKs9NIdo12bPP4IdUzGpsAU8iFeMW7yfTigEnJND1FO4fPt+kWcwIDAQAB
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.