Last updated October 10, 2026 · Report an error
BIMI (Brand Indicators for Message Identification) lets a brand's logo appear next to its emails in supporting mailbox providers' inboxes. It's published as a TXT record at a fixed "default._bimi." subdomain prefix.
How it works
Enter a plain domain and the tool queries the "default._bimi." subdomain for a TXT record starting with "v=BIMI1", reporting the record and its logo URL (l=) if found.
- Enter domain.
- Click Calculate to see your results.
Examples
A domain with BIMI configured
A record like "v=BIMI1; l=https://example.com/logo.svg;" tells supporting mailbox providers where to fetch the brand's logo image from.
Who should use it
- Verifying a BIMI record was published correctly after configuring it.
- Auditing a domain's email brand-authentication setup.
Industry applications
- Email marketing and deliverability
- Brand protection and anti-phishing programs
Advantages
- Instant check with no software installation.
- Reports the logo URL directly from the published record.
Limitations
- Doesn't validate the logo file itself (format, VMC) or confirm DMARC enforcement — only the DNS record's presence.
Common mistakes to avoid
- Publishing a BIMI record without first having DMARC enforced at quarantine or reject — most providers won't show the logo without it.
- Checking the bare domain instead of the fixed "default._bimi." subdomain prefix where BIMI records actually live.
Best practices
- Confirm DMARC enforcement first (with the DMARC Record Checker) before troubleshooting a BIMI logo that isn't appearing.
- Test how your logo actually renders across the specific mailbox providers your recipients use, since support and rendering vary.
Tips
- Pair this with the DMARC and DKIM Record Checker tools for a full picture of a domain's email authentication stack.
Frequently asked questions
Yes, with no signup and no limit on how many checks you run.
Mailbox providers generally require DMARC to already be enforced at a policy of quarantine or reject before they'll display a BIMI logo — it's their way of confirming the domain has real anti-spoofing protection in place. This tool doesn't itself verify your DMARC policy; use the DMARC Record Checker tool for that.
No — support varies by mailbox provider (some support it fully, some partially, some not at all), so a correctly configured BIMI record won't necessarily show a logo in every inbox.
BIMI generally requires the logo be an SVG Tiny PS file, and some providers also require a VMC (Verified Mark Certificate) — neither of which this tool checks; it only confirms the DNS record itself exists.