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 tradeflare.biz
Found
Selector: default
(TXT on default._domainkey.tradeflare.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxPpKBK/LJKHZyLmYNy8DA2cDbQPB4b92VTYybd7Bjzc9ATlHf0WYnv6rYSnEJj40ezDqp/GngMk+GnCLqVT4ekc1hhhfw6OymnEHf0oSfVYE/5C3Kt6gyzuKtj4Qkm/jGaRMrlP614p6AFq8LsPvtKL23JwQXu/0NTDU7NjGb7JSqGb1TbDZrbprgyPEznmS61eYE3lGpblLtzjs/JURq9EXyFa1Af/b0eRNTSDyxypvogSkv2Ue5459gN+FjC1gtTekrEix8+vEc4wslp2Cj6Xbd2ha5FQ0xBPE9TuZyBxWt+mH3YyHBNxUha99FlpIKueBBqcF1RlHF4ANSMM0/wIDAQAB;
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.