BIMI record syntax
Review v=BIMI1, duplicate tags, the logo URL and the certificate URL.
BIMI Record Checker
BIMI Record Checker
Check the BIMI TXT record, logo URL and DMARC prerequisites.
Example: Results are not written to the database
Brand email authentication
What is a BIMI check?
Brand Indicators for Message Identification lets a domain publish a brand logo for supporting inboxes. BIMI builds on SPF, DKIM and DMARC; it does not replace those authentication controls.
This checker queries selector._bimi, parses the logo and authority evidence URLs, and verifies that DMARC uses quarantine or reject with full policy coverage.
What the checker reviews
Enforcement eligibility
Confirm quarantine or reject policy and 100 percent coverage.
Selector support
Check default or enter the BIMI selector used by the domain.
Why check BIMI?
Publishing a TXT record does not guarantee logo display. Inbox providers also evaluate the authentication chain, SVG profile, certificate and domain reputation.
Find eligibility gaps
Confirm DMARC enforcement before investing in a VMC/CMC or deploying a logo.
Prevent deployment errors
Catch duplicate records, insecure URLs, a wrong selector and missing tags.
Protect brand consistency
Make legitimate messages easier to recognize while reducing brand impersonation risk.
How does the BIMI checker work?
The tool reads public DNS only. It does not send email, change DNS or store the result in a database.
- 01
Validate the domain
Normalize the input and validate the BIMI selector.
- 02
Query records together
Read selector._bimi and _dmarc TXT records in parallel.
- 03
Evaluate eligibility
Check BIMI tags, HTTPS URLs, DMARC policy and coverage.
- 04
Prioritize fixes
Separate missing records, syntax errors and policy weaknesses with clear actions.
BIMI checker FAQ
Why is the logo missing even when BIMI exists?
Providers may also require DMARC enforcement, a compliant SVG Tiny PS file, sufficient domain reputation, and an accepted VMC or CMC. Passing a DNS check does not guarantee immediate display everywhere.
Does BIMI require a VMC?
Requirements vary. Some providers accept BIMI without a certificate, while platforms such as Gmail generally require an accepted VMC or CMC.
What is the default BIMI hostname?
The common hostname is default._bimi.example.com. Use the matching hostname when the domain publishes another selector.
Is DMARC p=none eligible for BIMI?
Generally no. Use quarantine or reject and apply the policy to 100 percent of messages.
Does this tool validate the SVG file itself?
This check focuses on DNS and DMARC eligibility. Final deployment should separately validate the SVG Tiny PS profile and any certificate content.
Related email and domain tools
Continue through the authentication chain, transport security and DNS record generation.