BIMI Checker.
Know whether your brand logo is technically ready for the inbox.
Check the BIMI TXT record, effective DMARC policy, SVG Tiny PS logo, and published certificate evidence for any domain. The result separates technical readiness from mailbox-provider display decisions.
Bookmark-worthy moments.
Use one check to find the DNS, policy, or logo problem that is blocking a BIMI rollout.
Verify DMARC enforcement
Confirm that the effective policy is quarantine or reject at 100%, including inherited organizational-domain policy for subdomains.
Validate the published logo
Fetch the l= URL safely and check key SVG Tiny PS requirements, including profile, version, square viewBox, HTTPS, and embedded content.
Catch rollout blockers
Find missing records, duplicate tags, inaccessible assets, and certificate evidence issues before testing with mailbox providers.
BIMI connects email authentication to brand identity.
A logo in the inbox starts with DNS, but it does not end there.
Brand Indicators for Message Identification, or BIMI, lets a domain publish a brand logo for supporting mailbox providers. The record normally lives at default._bimi.example.com and points to an HTTPS-hosted SVG Tiny PS logo. A different selector can be used when the sender configures one.
BIMI depends on enforced DMARC. The effective policy must be quarantine or reject, and pct must cover 100% of mail. For a subdomain, the organizational domain's sp policy can control the result. The individual message must also pass DMARC alignment when it is delivered.
A technically correct record does not guarantee that a logo appears. Providers can require a Verified Mark Certificate or Common Mark Certificate and can apply their own reputation, eligibility, and display rules. Use this checker to validate the public setup, then test with each provider you care about.
Declares the BIMI record version and must be the first tag.
v=BIMI1Points to the HTTPS-hosted brand logo in SVG Tiny PS format.
l=https://example.com/logo.svgPoints to PEM certificate evidence such as a VMC or CMC. Optional in the record, but required by some providers.
a=https://example.com/mark.pemRequires an effective p or sp value of quarantine or reject with pct=100.
v=DMARC1; p=reject; pct=100Asked. Answered.
Clear answers about records, certificates, and what a passing result actually means.
Publish it as TXT at <selector>._bimi.<domain>. The common selector is default, which produces default._bimi.example.com.
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