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 trulia.com
Found
Selector: selector2
(TXT on selector2._domainkey.trulia.com)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC8jP3eO/7pivGnpHAMWraS+Nol/m+m703KULEarmgnoIRYV50gEmB3/IBHxeT9MK3M01EfTp2eBIYn/1x59Nk2e7T3mbYtvjHA6hP3XXuDPZKiAkBdK23WDrmFXfUw2q2XjU3Y8xg5vv1yLJ0g2iyYH520ZF1aFW6x4ZZl19EKhQIDAQAB;
Selector: google
(TXT on google._domainkey.trulia.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0g1fX7J2hUeRRETiItckBHeHnRSw1eVDZryeVAC807rdAZr+XJ/g7ZkXF7OSP+je87XKC5LuMh75y8ALdM3f5kJNCNLc3RAmOOR6elHEbIYHCiHyU41M56wI1S9qznZG4o3EVexUoPmqmB7z9dlf2T6iq135BsccrgXQbPjtwM9SQ0PhOQ/yfYd6PKDohS9P6y7uVxWfISpKH9GzS8GWCiQFiYsDHeQpLrSOaz/9bi5Oo3Wt5ld5oUW36nz/nrIF6gzA4F1wMDzMqrDotJ58h4S8uQR5jHwpz4BUlYqQkcl2dXMz5o0rPmCXdr9fNb5vqB1WPUyu0HtDcmQxaZdVRQIDAQAB
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.