DNS Insight
DKIM Checker
DKIM Record Checker - Validate DKIM Keys
Check DKIM (DomainKeys Identified Mail) records for email signing verification.
How It Works
This tool looks up the DKIM record at selector._domainkey.domain.com. The selector is a name chosen by the domain owner (common selectors: default, google, selector1, selector2, k1, etc.).
Understanding Results
Results show the DKIM public key and its parameters. A valid DKIM record should contain a public key (p=) and version (v=DKIM1). The record is used by receiving mail servers to verify email signatures.