BIMI checker
Check whether a domain is set up to show its logo in Gmail, Apple Mail and Yahoo: the BIMI record, the logo file, the mark certificate and the DMARC policy underneath.
Check a domain's BIMI
Read-only: we look up public DNS and fetch the public logo and certificate over HTTPS. We don't keep a record of the domains you check.
What BIMI needs, and what we can help with
BIMI (Brand Indicators for Message Identification) lets a mailbox show the sender's logo next to their email. It's published as a TXT record at default._bimi. followed by the domain, for example v=BIMI1; l=https://example.co.uk/logo.svg; a=https://example.co.uk/vmc.pem.
The four parts
- DMARC at enforcement:
p=quarantineorp=reject, applied to all mail (nopctbelow 100), with subdomains not set tosp=none. This is the hard part for most domains. - The record:
l=points at the logo anda=at the certificate, both over HTTPS. - The logo: an SVG in the SVG Tiny Portable/Secure profile: a
<title>,baseProfile="tiny-ps", no scripts, embedded images or external links, ideally square and under 32 KB. - A mark certificate: a Verified Mark Certificate (VMC) for a registered trademark, or a Common Mark Certificate (CMC) for a logo in established use. Gmail and Apple Mail need one to show the logo; Yahoo may show a logo without. Certificates are bought from authorised issuers.
Honestly: we don't do BIMI
Domain Health Hub doesn't host BIMI records, logos or certificates, and doesn't monitor them. This checker only reads what's public. What we do help with is the step everything else depends on: getting a client's DMARC from p=none to enforcement safely, with the reports to show nothing legitimate will break.
Do this for every client, every day
- All nine checks on every client domain, daily, graded A to F
- Alerts by email or webhook when a grade drops or a record changes
- A monthly report card for each client, with your logo on it
- Hosted DMARC, SPF, DKIM and MTA-STS, so fixes don't wait for a DNS login
Start a free 28-day trial: up to 3 domains, no card needed.
Keep going
- What is DMARC? A plain-English guideThe guide
- DMARC p=none or pct below 100How to fix it
- No DMARC recordHow to fix it
- DMARC checkerSee a domain's DMARC policy in plain English, and where its reports go.
- DMARC record generatorBuild a correct DMARC record in a minute, with each setting explained.
- Sender requirements checkerCheck a domain against Google, Yahoo and Microsoft's rules for bulk senders.
- Free domain checkerAll nine checks on a domain, with a grade from A to F.
- Report cardsWhat your clients get each month, with your logo on it.
Questions
Do you host BIMI or sell certificates?
No. This tool reads public records only. We help with the DMARC enforcement BIMI needs, not BIMI itself.
Why isn't my logo showing in Gmail?
Gmail needs DMARC at quarantine or reject, a valid SVG Tiny PS logo and a VMC or CMC, and it also weighs the domain's sending reputation.
Does BIMI work without a certificate?
Yahoo may show a logo for well-established senders without one. Gmail and Apple Mail need a VMC or CMC.
Why don't you show the logo itself?
An SVG can contain scripts, so we don't display files from other sites on our page. We check the file's structure instead.
Is this a full validator?
No. It checks the basics providers look for. The BIMI Group publishes the full SVG Tiny PS rules and its own inspector.
Get every client's DMARC to enforcement.
Start a free 28-day trial: up to 3 domains, no card needed.