DKIM Record Lookup

Look up DKIM public key records for a domain and selector. Verify your DKIM DNS configuration.

Common: default, google, k1, selector1

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Frequently asked questions

What is a DKIM selector?
A DKIM selector is a label used to identify which DKIM key pair was used to sign a message. Common selectors include "default", "google", "k1", "mail", "dkim", "selector1", "selector2" (Microsoft 365). You can find the selector in the DKIM-Signature header of a sent email.
Where is the DKIM record stored?
DKIM records are stored as TXT records at {selector}._domainkey.{domain}. For example, for selector "default" and domain "example.com" the lookup is default._domainkey.example.com.