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DKIM Checker

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DKIM Checker

Look up the public DKIM key for a domain and provider selector, then connect the result to your email security report.

Domain or public host

DKIM selector (from your provider)

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GEEK LABS TECH · DKIM CHECKER

Your results

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Send these diagnostic results to Geek Labs Tech with your question. Contact details are optional; include email or phone if you’d like a reply.

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Only your latest check can be attached, for 30 minutes. Review URLs and results before sharing sensitive details.

What to know

Enter a selector from your provider or the s= tag of a DKIM-Signature header. There is no universal selector; a missing record for one selector does not prove DKIM is absent.

Checks are limited to public Internet hosts. We use short timeouts and small responses to keep this service lightweight.

DNS queries use Google Public DNS; domain registration queries use public RDAP services. Privacy details.

Your next step

DKIM Setup Guide
Email Security Check

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