BIMI Checker

Validate BIMI DNS records, logo files, and VMC certificates for any domain.

What is BIMI?

BIMI (Brand Indicators for Message Identification) is an email standard that lets organisations publish a verified brand logo that email clients display next to authenticated messages in the inbox. It requires a DMARC policy of p=quarantine or p=reject to be in place.

A BIMI record is a DNS TXT record published at default._bimi.yourdomain.com. It contains a logo URL (l=) pointing to an SVG file, and optionally a Verified Mark Certificate (VMC) URL (a=) issued by a recognised certificate authority (currently DigiCert or Entrust). Email clients that support BIMI — including Gmail, Yahoo Mail, and Apple Mail — display the logo for authenticated messages.

This tool validates the BIMI DNS record, fetches the SVG logo, and verifies the VMC certificate if provided.