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  3. BIMI record checker
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BIMI record checker

Looks up a domain's BIMI TXT record over DNS over HTTPS, checks the DMARC policy it requires, and shallow checks the logo URL over the proxy, leaving certificate validation out on purpose.

This tool is in beta

Still being tested. If a result looks wrong, tell us.

Report a problem

Type a domain and press Check BIMI

The report covers the record, the DMARC policy BIMI requires, the logo URL, and a shallow look at the logo bytes.

This tool never validates a BIMI certificate. The a= tag is read and reported, and the certificate chain, its issuer, and the chain-of-custody file are out of scope. The SVG checks are shallow string checks on the first bytes the proxy returns, not the full BIMI SVG Tiny 1.2 profile, and a pass here does not mean Gmail or Apple Mail will show the logo: each mailbox provider applies its own acceptance rules on top. A DNS miss is reported as data, not as an error, because a missing record is a normal answer.

Query

The sender domain, not the mail host
The published BIMI selector; default covers most senders
Resolver
One GET through this site's proxy for the l= URL, so the bytes get a shallow look

What leaves your browser

Your query goes to the selected DoH resolver over HTTPS, and the logo URL goes through this site's proxy, only when you press the button. This page leaves your browser only when you press the button; never on load, never in the background. Nothing is sent anywhere else. Google Analytics still measures the visit to this page, and it never receives what you run through this tool.

Runs on this device. Nothing is uploaded.

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  • Live DNS lookup
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