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 silverlinetrade.com
Found
Selector: default
(TXT on default._domainkey.silverlinetrade.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxcu9uRwsc7vhtfEY7072fSYJBailypuUr8j13E6qjdZjCABGS4vYMIAIwT4BrgwW8vL00tF2p0Ja/DerCwlOcrPV5vWpWUbW9iDfdus+qF4mhEX+8GKQ6+/cEvrUzBroOD6YGbnvTDAWCydZaTT/Y52nLA3xBPa7W21hJel7Ho6mwOf8ePXZLdwd6rOigrl9FmMd1SVutgu5u4UIrAtkNWS+ZJOUa17Ogdv+XK5HMw1EUiyywIA47Y16w7TFyOP8Sijfj38h0Ofa/WFL0vKT6y4X5DdMn/2Fw3BKwEi+4gPvk5oIQ/PHoCHu84f/75vNjz0neLsU2rhObqfr4e3X/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.