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 nexotrade.biz
Found
Selector: default
(TXT on default._domainkey.nexotrade.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr/D009j5ceBipnDFMu+rMlVdnxJ9h2WIUoUIQWUIn8R8vf8iV9K1zOALyXJJPBQp1XV1QRy3Zckm+W3moe9C3IIkUmVWxSLBcjyShxUBRkImW8GBlBAbkGNbt8XU5moHyd/3JZx7HKK6CI2KcQubhCY1C+QZEsj9kAg6LDD9beE/B5fr4nn7fGFlgRsuYadIeogJHZvlvndlPgb+f61rLrqUg+zn9LwLMe8Wa1juIgd8aBUHbr30yeq2JZRpu+b7LbcZ7k9g7LxS+/Afk+6mh5AopJnLeqpud9MiEMOVWLlgkkbAn6vOPHQZsAf6AXl1I4Fl/f5/eiaTBLE1/T46hwIDAQAB;
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.