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 hootsuite.com
Found
Selector: google
(TXT on google._domainkey.hootsuite.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAp9jjbuu2zP3inLIa1sYCeaqkc+kwaJfLCeE8PlS/RpSfaPeCuaY93V0yoak4j3oi396FPcAtSsMriaxPhUhTVteOQEMZBOVL4/22Ak4ZutToWhDRTRs1SgIX8tec7VVfuxeyFh8FPgm9YZZLH4Hny0PvWVwuWZXah3wegfbEih6WhukhFzDScBTfNyuzvMG0i80Hg+7yQKjljZdIwLM754vwWLy1alm2la2UH9ZVqskw+lySdLiDWSYT8LjRo7X9vslvMUw5PY9z0tdFZqYGlmRuLb7omT6sWBaq4YLyRg0VFPWEdJpdwf1E/FL4IgHN+zv8eK+hxq4gd45YRGKC+QIDAQAB
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.