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DKIM Selector Checker

Check whether a domain publishes a valid DKIM public key at one exact selector — key type and size, revocation, hash and service policy, and record-level findings. This tool does not verify actual message signatures, certify deliverability, or enumerate every selector a domain might use.

e.g. example.com

The selector is the value before ._domainkey in the DKIM DNS record.

This tool isn't fully wired up yet — check back soon.

This checks the selector you provide. It does not enumerate every DKIM selector for the domain.

A missing selector does not prove that the domain has no DKIM configuration.

The domain and selector you enter are sent to the Collabovizion diagnostic service to query the exact DKIM record you asked about. Results are not saved as user history. No account is required.

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