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DKIM Record Checker

Look up the public DKIM TXT and CNAME answers for a domain and selector you supply.

Free No sign-up Instant results

Enter the selector from your provider or a real DKIM-Signature header. Selectors are not guessed.

The hostname is sent through our server to Google Public DNS. Your website is not fetched. No test email is sent.

Result

Your result will appear here

What is DKIM Record Checker?

DKIM Record Checker is a free online website tool from GigaTools. Look up the public DKIM TXT and CNAME answers for a domain and selector you supply. It works in any browser on desktop or mobile, with no account or installation needed.

Common uses

  • Confirm whether a named DKIM selector returns a public record.
  • Inspect DNS answers for a provider-supplied DKIM setup.

How it works

How to use DKIM Record Checker

Enter domain and selector

Read d= and s= from a real DKIM-Signature header or use your email provider’s instructions.

Query the exact record

Look up selector._domainkey.domain using Google Public DNS.

Inspect returned records

Review TXT and CNAME answers with your provider. This does not test a message signature.

FAQ

Good to know

How do I use DKIM Record Checker?

1. Enter domain and selector: Read d= and s= from a real DKIM-Signature header or use your email provider’s instructions. 2. Query the exact record: Look up selector._domainkey.domain using Google Public DNS. 3. Inspect returned records: Review TXT and CNAME answers with your provider. This does not test a message signature.

Can the tool discover every selector?

No. You must supply the selector. Failure to find one selector does not mean the domain has no DKIM.

Does a published key prove DKIM works?

No. Signing, key validity and signature verification require inspecting real messages. This tool reports DNS answers only.

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