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 hitechtrade.biz
Found
Selector: default
(TXT on default._domainkey.hitechtrade.biz)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqIJrXT203WGQDgHLnbnFItRp88Y9ngZgr+DIEg2/mx7a60uKaqe3Gij5NNzX6Ot3tD0k5T4LnqpR2332nZw/Ey7GCBqjnaKpecumya+saTrb+9oDwqyA9vuTDX+/EagXuf3kswOt9910y3W8dDqwZS0XSMvOa6g/b5ag+WWuuyusPvtO2ccKrX0ttYndoJsLEInXcfQLTgG+OxDxozqsSIiDxc4yf3xqSRfuQ3tS9as3g86MQhMKry1GAfD/0inNO1gFKRddNo7vNXnla/ZC0VJYtV/LK/ka6SSuUjOkn7k1OtXOlPrh3kqo6FO+69MIacka9FqnGyxjZj63LhJemQIDAQAB;
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.