Checks one or more domains to see whether they are set up to show a brand logo n
Checks one or more domains to see whether they are set up to show a brand logo next to emails in Gmail, Apple Mail, and Yahoo. It looks up the BIMI settings the domain has published, checks the logo file follows the required format, checks any logo certificate is valid and unexpired, and confirms the domain has strict enough email protection turned on. Returns a clear pass or fail per domain, plus a plain list of what is broken when something fails.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
533 msmedian answer time
$0.01listed price per call
$0.01price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://bimi-checker.underscoredone.com/check
| Category | Everything else |
|---|---|
| Provider host | bimi-checker.underscoredone.com |
| Networks | eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 3 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.01 | 533 ms |
Example input (from the provider)
{
"body": {
"check_vmc": true,
"domains": [
"example.com",
"brand.co"
],
"selector": "default"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"check_vmc": {
"description": "Whether to also verify the logo's security certificate. Turn off for a quicker check.",
"type": "boolean"
},
"domains": {
"description": "List of website addresses to check, such as example.com. Up to 10 per request. Do not include http:// or https://.",
"type": "array"
},
"selector": {
"description": "The label used to find the branding settings, almost always 'default'. Only change this if the domain uses a custom label.",
"type": "string"
}
},
"required": [
"domains"
],
"type": "object"
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"api_version": {
"type": "string"
}
},
"required": [
"api_version"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}