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 independent.co.uk
Found
Selector: selector1
(TXT on selector1._domainkey.independent.co.uk)
v=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDTuMpQaDoSbcLUFgiHiMbYPfBtX/MLJTcdtXXI7Df+4YxTxpAOasj41U767LTVfffuTey8OtrZncSufXxk5KQlUn7T3iOuwjsPPPruMeudqi8Ja9NfqAcmHFmlqjUesuXdVIIXVUeEu9PyJNKMhr3I0IIvvkoKtFRYAH/ekxnmbwIDAQAB; n=1024,1455856373,1471581173
Selector: google
(TXT on google._domainkey.independent.co.uk)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAut8PvFJPKco3irUfgdv1nczWVPT5qW7Mb1FphE5RtLwt5JbkDhkkM7bD/oEh+ZCf43YWJVAEgnkItsB2diEOFOg5Re3OtmrwNodtQdVPcUK4hwGWrUvU1j1IgH7m4pw0FxZibLuJw616gIML68mC745CEoaLF+8sGf4qmwHsqDSCJCibn0YseY1BTUurbve+VmdEvFa5EprI89UYAzI/QzWY0+G8qBVawc7auAdewFB8Bz3yhzst5EiqoA+ZBRtm6Yqct9ilApiQe2W8EWy3iikcxPopHk9H23pksXrUgseOP9oGgHpIHMDYQEjs/ntxvYEC6NwsJ0DS0E5PdpRrvwIDAQAB
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.