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 spincasino.com
Found
Selector: selector1
(TXT on selector1._domainkey.spincasino.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAo326G44LT+4K53uKjt1aH82aISixvYSvZqwjBVi+dPcZLBqzgpbRwC+genWedSlPlHoc2+nBS7x9vENnzDNSjoxvcX7+YszeicpXyblctaoVt3NFmQ/2pfFNhZRkuDI1iXIw9v/LARNqROkbp1eE3FfvE5DcSeLX/QkGDgT81Px2Ayx3JWuBW0/xi8hE+gJGVfBbXNqVOtL1fQl2xKOeh6Cyf0AV1DOxG+jI6KtUdOFLwtaoASEPpBa85Nvm23nVlTJqBTKjpTEwD5n6MbBtHGiIz7ZG0VkVrmV2Y0GT6BAtDAMxaQZTRa4qAbDxQpIq3ww3zZDie/FpdpkAgUaluQIDAQAB;
Selector: selector2
(TXT on selector2._domainkey.spincasino.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0MEI7h5qT7rKYCepe1dlTHr23NcY3qxpQI0F1J7XxmyanihOW5tYOPtvIAt/u9iwZI/gUa/NSbfmecWh1IxQ5MywvgH8HUwp+/6traYg4jcIsDY/nLNpqJYE4lyIDJZNdFkT82BxTOmfZ2Q6JFYTJhp7n3pRnfdAharCD0qsndJ+t9VHEUWDBkVU743vOsAskyicPZqDHe8liYJgzlFnIVpizySVbWLftq8veMVL95L9oEAJfTp2JsJbKAG3WRugTuKmEXyo/cHVmM0ThHcRFv67rzqdtUsluzsN9SMH5RM+DO5/2A+WAMjwK9Gx9uH35k33aa+gmXn/NacnfAJ1lQIDAQAB;
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.