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 goodtrade.biz
Found
Selector: default
(TXT on default._domainkey.goodtrade.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo+R70lcGhXOCg8XjoCvNHyHJ56uNpoNRl2d9Aqwe1tI8ZbsN5acZfZ2lyPJlYSf7pxfFPfs6iikpoA0u9RvAhj5I1mQX4W6N8NBU/nYFvPGozGvU6y5XxiXSjGhqSL0dIiFBwEpenjUEQgTnW5A4q8Tt90vvkfEbVuxRWlDLH49G4IG2oio9yqYIL27MHJHYMwqaT9XbK9LE75sO++0b+ObYh2AANZGGOo1XVq/210s9rRC1R8MUoMSUZKsncmlME/hwOJi7BpbfseUaJ5reVAd0Z08GaZ/9tHqmgDYyIHvnRjfJvmD5gqnU86NITvd+m4tCNEqGQvEt1a+X1Dd5hQIDAQAB
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.