DKIM record checker and generator
Check the DKIM key a selector publishes, or let us look through the selector names large mail providers use.
DKIM record builder
Your mail system creates the key pair. This turns the public key it shows you into the DNS record. Never paste a private key anywhere.
Paste a public key to see the record.
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A one-time check shows today. Pistos DMARC report monitoring is still being built. Create a free account now to hold your place and add your domain when it opens.
Questions
How do I find my selector?
Open a message you sent, view the original source, find the DKIM-Signature header and read the s= value. The d= value is the domain.
Is a 1024-bit key a problem?
It still verifies at most receivers, but 2048 bits is the current recommendation. Rotate at your next planned key change.
Why can't you find my selector automatically?
Selectors are not listed anywhere in DNS. We can only guess the common ones.