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 crroofingservices.com
Found
Selector: default
(TXT on default._domainkey.crroofingservices.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA5i6NW3MqP07fp/DMEEJUt82D4Z3cqSfOKeo1aCKjieeMy3IngDYncCTa/q+9o0yiBXfRKAx1vX4DNY3N66a9Jm/a0qQwHXCjbEp+nofcjSYeN2XJtafiTK8c28Hmk0BlvK5jKP3vINQW+oGnqEnFRDWt8EHEulkqjgJemCwLW6TMDVD2MffhG++wT7vLUgvChEvJO2eYcz9qvkqozszIkWl6BZPQiHggUIlGlOWPuN0bjHRm2pg/6YTveNhm3EvR3dGY2Jh/ivj685J3xscUXPdbLVXdgtvy3nOVRUjww1Gqj4zMYK6N2tBuvrnTBp29DcS2+E8Jd/pqLx8BvjxexQIDAQAB;
Selector: google
(TXT on google._domainkey.crroofingservices.com)
v=DKIM1;k=rsa;p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAnnmSwIdmtbB4WXoravKYozXiJlfjflzp9x1+9bDHnPpIU7gg+cx4bWDzXpr6YUkEwmSqv2s0UAm5OXEDH5+9AeiLcoN7JHxmGivvCznZFisKwTltaltOpuyG5JIxF9P81fT1es1xOB2tsY/k0I1VCq70NVz5CXmdA5vQpOaWwaqZHyKZZQzLKUqQk0WmZxtpIedBAiUC/6g+kiLg+O/4Qgy7UmGIByMT//9tMMk07RmKNIfdJbKSXKKBJp0iTktRb+x0O/RarfyyBk+ptdpvZDZNDRHdsTxA6smsZ7ppOd627wbgmlyiDISHJq3d7Va4+CUh2MhhHW/H7goikzXODQIDAQAB
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.