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 casinocenter.bet
Found
Selector: default
(TXT on default._domainkey.casinocenter.bet)
v=DKIM1;h=sha256;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWkxzReuqYOg9QgTpZ2TElGYFI3wJxt/St3QfMCbAlsRpI760qBV5NbrsQruFmqSRYaw8hqQ7La9cjc/o/Y1r3RXetdUemiKhCkjlK4hlvfQX4TgcxSrOV3Xei4KgKM3ue76e/P9MprgDHKcop3s6L3VSBtF4sD0I3mBfH3T1zLwIDAQAB
Selector: selector1
(TXT on selector1._domainkey.casinocenter.bet)
v=DKIM1;h=sha256;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWkxzReuqYOg9QgTpZ2TElGYFI3wJxt/St3QfMCbAlsRpI760qBV5NbrsQruFmqSRYaw8hqQ7La9cjc/o/Y1r3RXetdUemiKhCkjlK4hlvfQX4TgcxSrOV3Xei4KgKM3ue76e/P9MprgDHKcop3s6L3VSBtF4sD0I3mBfH3T1zLwIDAQAB
Selector: selector2
(TXT on selector2._domainkey.casinocenter.bet)
v=DKIM1;h=sha256;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWkxzReuqYOg9QgTpZ2TElGYFI3wJxt/St3QfMCbAlsRpI760qBV5NbrsQruFmqSRYaw8hqQ7La9cjc/o/Y1r3RXetdUemiKhCkjlK4hlvfQX4TgcxSrOV3Xei4KgKM3ue76e/P9MprgDHKcop3s6L3VSBtF4sD0I3mBfH3T1zLwIDAQAB
Selector: google
(TXT on google._domainkey.casinocenter.bet)
v=DKIM1;h=sha256;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWkxzReuqYOg9QgTpZ2TElGYFI3wJxt/St3QfMCbAlsRpI760qBV5NbrsQruFmqSRYaw8hqQ7La9cjc/o/Y1r3RXetdUemiKhCkjlK4hlvfQX4TgcxSrOV3Xei4KgKM3ue76e/P9MprgDHKcop3s6L3VSBtF4sD0I3mBfH3T1zLwIDAQAB
Selector: mail
(TXT on mail._domainkey.casinocenter.bet)
v=DKIM1;h=sha256;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWkxzReuqYOg9QgTpZ2TElGYFI3wJxt/St3QfMCbAlsRpI760qBV5NbrsQruFmqSRYaw8hqQ7La9cjc/o/Y1r3RXetdUemiKhCkjlK4hlvfQX4TgcxSrOV3Xei4KgKM3ue76e/P9MprgDHKcop3s6L3VSBtF4sD0I3mBfH3T1zLwIDAQAB
Selector: smtp
(TXT on smtp._domainkey.casinocenter.bet)
v=DKIM1;h=sha256;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWkxzReuqYOg9QgTpZ2TElGYFI3wJxt/St3QfMCbAlsRpI760qBV5NbrsQruFmqSRYaw8hqQ7La9cjc/o/Y1r3RXetdUemiKhCkjlK4hlvfQX4TgcxSrOV3Xei4KgKM3ue76e/P9MprgDHKcop3s6L3VSBtF4sD0I3mBfH3T1zLwIDAQAB
Selector: dkim
(TXT on dkim._domainkey.casinocenter.bet)
v=DKIM1;h=sha256;k=rsa;p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDWkxzReuqYOg9QgTpZ2TElGYFI3wJxt/St3QfMCbAlsRpI760qBV5NbrsQruFmqSRYaw8hqQ7La9cjc/o/Y1r3RXetdUemiKhCkjlK4hlvfQX4TgcxSrOV3Xei4KgKM3ue76e/P9MprgDHKcop3s6L3VSBtF4sD0I3mBfH3T1zLwIDAQAB
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.