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BIMI.
A free resource to understand BIMI and explore the data behind it. Follow live certificate trends, find clear answers and discover the tools and steps to get started.
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Try the inbox comparison. Switch between the two views to see the difference a brand logo can make.
The BIMI World observatory
A world of BIMI data.
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Explore certificate activity from around the world. Filter VMC and CMC trends, compare issuing authorities and see the patterns behind the numbers.
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A small change you can see
Same message.
More recognisable.
BIMI stands for Brand Indicators for Message Identification. It lets eligible brands display their logo alongside authenticated email in supporting inboxes.
Behind that small image are three things worth understanding: email authentication, your logo, and evidence of your rights to use it.
Planning your next step? Check the BIMI requirements, explore free BIMI tools or compare certificate authorities and prices.
Explore how it worksChoose your next chapter
A good place to start.
Wherever you are.
New to BIMI?
Start here.
Get the big picture, learn the language, and understand what that little logo can do.
Learn the basics GET BIMIBring your brand
to the inbox.
Choose a free guided tool, or prepare to apply directly to a CA.
Get BIMI GO DEEPERWork out
what’s missing.
Find clear answers to the questions that come after setup, and take your next step.
Troubleshoot BIMIFrom domain to display
Four pieces.
One recognisable sender.
BIMI brings existing email authentication, your brand artwork, and published evidence together. Each piece has a job to do.
See how it all connects- 01
Authenticate your email
Give receivers a way to verify your sending domain.
- 02
Prepare your brand mark
A clear, compatible logo in SVG Tiny PS format.
- 03
Establish your rights
Use certificate evidence where the provider requires it.
- 04
Publish. Then verify.
Connect the assets through DNS and test real messages.
The knowledge that makes it click
Get familiar with the essentials.
SPF, DKIM & DMARC, explained
Understand the foundations of BIMI, one plain-English question at a time.
Explore guidePrepare a BIMI-ready logo
Turn a brand asset into a small, crisp, compatible inbox logo.
Explore guideVMC vs CMC: choose your path
Compare verified, common, and self-asserted marks without getting lost in terminology.
Explore guideWhere does BIMI work?
Understand provider support, certificate rules, and why experiences vary.
Explore guideBeyond the basics
More questions.
More useful answers.
Moving DNS providers without losing your BIMI setup
Preserve BIMI through a DNS provider move with a record inventory, a before-and-after comparison, asset checks and a clear cutover checklist.
Read articlePrepare an evidence pack for a BIMI certificate application
Organise company details, domain control, mark evidence and authorised contacts before a VMC or CMC application, with a practical review worksheet.
Read articleBIMI after forwarding, mailing lists and email gateways
Investigate BIMI differences between direct and forwarded mail by comparing authentication, message changes and receiver policy along the delivery path.
Read articleLooking for a specific answer? Explore 28 BIMI questions
Less guesswork. More clarity.
Turn what you’ve learned
into a next step.
Check your readiness, draft a BIMI record, or work through a practical launch checklist.
Explore tools & checklistsWhat does BIMI stand for?
Brand Indicators for Message Identification. It lets a sending domain publish a logo that supporting inbox providers can consider displaying alongside authenticated mail. Read the guide.
Do I always need a certificate?
It depends on the receiving provider. Gmail requires a VMC or CMC. Some providers accept self-asserted BIMI, subject to their other criteria. Plan around your actual audience. Read the guide.
Does a CMC give me the Gmail checkmark?
No. Gmail supports CMC-based logo display, but its verification checkmark is associated with a VMC. Logo support and checkmark eligibility are different. Read the guide.
How long until the logo appears?
There is no universal timer. Issuance, DNS caching, receiver caches, reputation, and provider eligibility all affect the result. Verify each part before treating a missing logo as a waiting problem. Read the guide.
A little knowledge goes a long way
Make sense of the inbox.
Your first step is understanding. We’ll help with the rest.