Selector:Querying: default._bimi.domain.com
Enter a domain to check its BIMI record
What this tool does
Free BIMI record checker — verify brand logo DNS configuration for Gmail and Apple Mail
How BIMI works and what this tool checks
This BIMI record checker queries your domain's DNS for the BIMI TXT record (published at selector._bimi.yourdomain.com) and parses all tags — the logo URL (l=) and optional VMC authority evidence (a=). It validates the configuration and flags common issues like missing logo URLs, non-SVG file formats, and insecure HTTP URLs for authority evidence.
BIMI is an emerging email standard that lets brands display their logo next to emails in Gmail, Apple Mail, Yahoo Mail, and Fastmail. Implementing BIMI requires a valid DMARC policy (p=quarantine or p=reject), an SVG Tiny 1.2 logo, and for Gmail's verified checkmark, a Verified Mark Certificate (VMC). This tool verifies the DNS side of that configuration.
Features and capabilities
BIMI DNS Lookup
Queries the correct selector._bimi.domain DNS record using Cloudflare DoH.
Logo URL Check
Verifies the l= tag is present and points to an SVG file.
VMC Detection
Identifies whether a Verified Mark Certificate (a= tag) is configured.
Custom Selector
Supports custom BIMI selectors beyond the default 'default' selector.
Issue Detection
Flags misconfigured tags, missing required elements, and insecure URLs.
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FAQ
Frequently asked questions about BIMI, brand logo email display, and VMC certificates
What is BIMI?
BIMI (Brand Indicators for Message Identification) is an email standard that allows organisations to display their brand logo next to emails in the recipient's inbox. Supported by Gmail, Apple Mail, Yahoo Mail, and Fastmail, BIMI shows a verified brand logo as a visual trust indicator. To implement BIMI, you need a valid DMARC policy (p=quarantine or p=reject), an SVG logo in BIMI format, and optionally a Verified Mark Certificate (VMC) from a trusted CA for the checkmark badge.
What is a VMC (Verified Mark Certificate)?
A Verified Mark Certificate (VMC) is a digital certificate issued by a trusted Certificate Authority (Entrust or DigiCert) that cryptographically verifies your organisation owns the trademarked logo. VMCs are required by Gmail for the blue verified checkmark badge. Without a VMC, some email clients may still show your logo (Apple Mail does not require VMC) but you won't get the verified badge. VMCs typically cost $1,000–$1,500 per year and require a registered trademark.
What DMARC policy is required for BIMI?
BIMI requires a DMARC policy of p=quarantine or p=reject — a policy of p=none is not sufficient. This is because BIMI is designed to display logos only for authenticated, verified senders, and p=none does not actively protect against spoofing. Your DMARC record must cover the exact domain (not just a subdomain) and must have been in place long enough for email providers to trust it. Gmail typically requires the DMARC policy to have been active for some time before showing BIMI logos.
What SVG format is required for BIMI?
BIMI requires the logo to be in SVG Tiny 1.2 format — a restricted subset of the full SVG specification. The SVG must: be a square aspect ratio, have a solid background (transparency is not allowed at the root level), be under 32KB, and conform to SVG Tiny 1.2. Regular SVG files exported from Adobe Illustrator or other design tools usually need to be converted — tools like the SVG Tiny PS plugin or online converters can help. BIMI Group provides an official SVG validator at bimigroup.org.
Which selectors should I check?
The default BIMI selector is 'default' — this is what most implementations use. Your BIMI record is published at default._bimi.yourdomain.com. If you use a custom selector in your DMARC record (via the bimi= tag, though this is not widely adopted), you'd check that specific selector. For most domains, checking the 'default' selector is sufficient. This tool defaults to 'default' and allows you to specify a custom selector if needed.
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