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 ndtv.com
Found
Selector: selector1
(TXT on selector1._domainkey.ndtv.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAxUnFTeuHgNepFEd9P6LBzDE714q4qbUPsXd0/ewsIoay4losECM+uYSAWafmfutpKH/FD9X+Aew8psdBuTUA/1403h8LLWeaG/dXS/Y4Q+LhcXWG/3HwRqDcM0kGUxDCQ6LBiqcA9fNq9weSF4RR7nCBUfj/SkMTEcajtWSrwrsGlPkPNHYwmbSqP8wmdXuAf/bxFgHg9ArsYK6FQ9LPJIuNz3YkvLDTM/cb6M87XdXoRGAE5etoga7v9E6uVOnXUWK3yo2qxa5GB1bBIFsiofhRwt+x+PEnXoTX3QeERr5IKuPhC4v0b3M4BhrTWawrTouoZ+jt46HB3w2Un6llaQIDAQAB;
Selector: selector2
(TXT on selector2._domainkey.ndtv.com)
v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwg/5dsj6YL5rRAisGJUV0PpqY+WQB1haHQmlzf2SDviCnOZyg29rmxoS5JJqmRYtZhX9lBMPspRmzmrgddc3qOPuLw5bnirOztUW7bdbHr6RiBdifet/PrDBE8r/afbk6VBGfmGRcGWtCJS7iEMiXUTOEJLdoO3k1ccY31T9wEVUAnKFrpG4lyG3nFmVhjibqjtqei1pimcWs3hq6QFMYvLxhNQD7/xJljLgOprmhPyQuHAXBJX35m8g0NpM89AVU0iCW6ik/7mbBzLdycoXyc/Uw7BSh8FOJHYdKyr4uVEb52SXBgx5C7YTwLzTrOGPNjHDvIr3R9REItUY2+md/QIDAQAB;
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.