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 dewacasino338.com
Found
Selector: default
(TXT on default._domainkey.dewacasino338.com)
v=DKIM1; h=sha256; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA1YtElaDws+AvzAbkF/ZOb9oIFTBRMrVID/0trgtdw0OuwhioZ7Yam3PRA8S4/8zFvPxAvPBwRR3pD9qoQ25Q6U9aEYt1cy7rf2y8WXFfMKQKm1xxPB6e2LIbvNaVG+L4vbf+M4EmVI0EFb/IJW1GbC5C8kLCR0idOAalh66Fjrl9rESB/kmrGh8yNhkin9934XIZwgRz0x2ajUHPfetDP6hmN/GMEb1ul+SqvZB9c4i/YsS2AJV/vqNO4c9CqJW2Q4LXO0IEEGM+GULvQ+1XwkXdZsLOxndp3F2p3tCXezUtVx/HFj4wgXlSC+FNN0ofKimTrpAI0lwPcTRSmZWTnQIDAQAB
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.