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Free BIMI evidence tool

Trace BIMI publication without overstating the result.

Trace the default assertion and organizational fallback, evaluate current DMARC policy readiness, fetch the logo through a pinned public HTTPS boundary, and inspect SVG, authority, and certificate expiry evidence.

Enter the From-domain you want to audit. MailDNS checks the default BIMI selector and the bounded DMARC policy tree.

Evidence, with explicit limits

DNS, HTTPS, SVG, and certificate metadata are shown as observed. A domain-only check cannot prove message DMARC success, inbox display, or cryptographic Mark Certificate validity.