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 piratemikecomics.com
Found
Selector: default
(TXT on default._domainkey.piratemikecomics.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA4roSFtXhDBoGUs8AcmSwRqbNurU3NJsLszzMrOCTK9aLwp/hts1Lf9nm9xCGsO0IHqJJyUCfSKf7BwGHXB88oea++CVJWi2XmVatqimtPRQ1MJRzBTOEBERFH2CuEg7V/8muxjXZzhJg9+rRgmnhKAjeIovd6C0UFOcS8ehUujTXjKq6fYF++qtmThFm4ShOutJC8Def0dU/H7J9L8FGdfGIui9ZMQ7QbPSC5rpCUhq8okmmilKnvmNyjT++8Xs/OGqk1UtJRTt7hXJAtu8gdGYFKBwUuiPMpQV15/BPrgtxvjI+u5DFCD24a1neAsxj7yyoMnd7Ca5qqrA7a5cbQwIDAQAB;
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.