Verify your BIMI record, logo and mark certificate — and the DMARC enforcement your brand logo depends on.
Enter your sending domain to inspect its BIMI record, DMARC prerequisite, logo and mark certificate.
Privacy: we query public DNS for your domain’s BIMI and DMARC records and fetch the logo and certificate URLs published in the record over HTTPS to validate them. Nothing you enter and nothing we find is stored or shared.
Type the domain you send email from. We look up the BIMI TXT record at default._bimi.yourdomain.com, or at a custom selector if you use one.
The record syntax is validated against the current BIMI specification, and your DMARC policy is verified because BIMI only works when DMARC enforces with quarantine or reject.
The published SVG logo and VMC/CMC certificate URLs are fetched over HTTPS with strict safety limits and inspected for format, size and security problems.
You see a plain-language status for every check plus a prioritized list of findings, so you know exactly what to fix before mailbox providers will consider showing your logo.
Build a correct v=BIMI1 record for your domain, with logo and certificate guidance.
Open toolVerify the DMARC enforcement that BIMI depends on before your logo can appear.
Open toolBIMI (Brand Indicators for Message Identification) is a DNS TXT record that tells participating mailbox providers where to find your brand logo. When everything is set up correctly, providers can show your logo next to your emails in the inbox, which helps recipients recognize and trust your messages.
BIMI proves the logo belongs to the sending domain, so providers only honor it when the domain is protected against spoofing. Your DMARC policy must enforce with p=quarantine or p=reject; a monitoring-only p=none policy means your logo will not be considered.
A Verified Mark Certificate (VMC) is issued by an approved certificate authority for a registered trademark and is currently required by providers such as Gmail and Yahoo. A Common Mark Certificate (CMC) covers logos without a registered trademark and is accepted by a smaller set of providers. This checker detects and parses the certificate but does not verify its trust chain.
The logo must be a square SVG file in the SVG Tiny Portable/Secure profile, served over HTTPS as image/svg+xml. It may not contain scripts, event handlers, external references or embedded raster images, and it should stay under 32 KB.
A selector lets you publish more than one BIMI record, for example for different brands under one domain. Almost everyone uses the selector “default”, which means the record lives at default._bimi.yourdomain.com. Only change it if you deliberately published a record under a different selector.
Each mailbox provider applies its own rules, caching and certificate requirements, and some only show logos for senders with an established sending history. A passing result here means your configuration is correct — it cannot guarantee that every provider will display the logo.
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