Brand logos are hiding in DNS

• Brands publish their logo in DNS as a BIMI record, the standard behind the logo your mailbox shows next to an email.
• Roughly one in five of the top 500 sites publish one. High precision, low recall, so it ships as an optional package, not a favicon replacement.
• Shipped as metascraper-logo-bimi, with the record logic split out as bimi-url.

Where to find a website logo

// Resolve `logo` from HTML markup (metascraper-logo), first match wins.
logo: [
  toLogo($ => $('meta[property="og:logo"]').attr('content')),
  toLogo($ => $('meta[itemprop="logo"]').attr('content')),
  toLogo($ => $('img[itemprop="logo"]').attr('src')),
  toLogo($ => toLogoUrl($, 'brand.logo')),
  toLogo($ => toLogoUrl($, 'organization.logo')),
  toLogo($ => toLogoUrl($, 'place.logo')),
  toLogo($ => toLogoUrl($, 'product.logo')),
  toLogo($ => toLogoUrl($, 'service.logo')),
  toLogo($ => toLogoUrl($, 'publisher.logo')),
  toLogo($ => toLogoUrl($, 'logo.url')),
  toLogo($ => toLogoUrl($, 'logo'))
]

Mailbox providers already solved this

$ dig +short TXT default._bimi.microlink.io
"v=BIMI1; l=https://cdn.microlink.io/logo/logo.svg;"

• DNS is fast. Resolving a TXT record is typically cheaper than downloading and parsing an HTML document, especially once the resolver is warm.
• No HTML required. It still works when a page is JavaScript-rendered, rate-limited, or responds with a 403.
• The logo is intentional. It's the same asset mailbox providers use to represent the brand.
• The format is constrained. BIMI requires a square SVG Tiny P/S image, which is much better suited for avatars than a random favicon.

Why the record is a better source

• No scripts: the SVG cannot run JavaScript, so mailbox clients can render it safely.
• No external assets: no remote images, fonts, or stylesheets; the mark is self-contained.
• Square by design: every logo fits a 1:1 aspect ratio, making it immediately usable as an avatar or application icon.

Domain	Favicon	BIMI	Size	Title
x.com			520 B	X Corp.
apple.com			1.1 KB	Apple
cloudflare.com			1.4 KB	Cloudflare Inc.
adobe.com			474 B	Adobe: Creative, marketing…

A strong signal when it's there

const metascraper = require('metascraper')([
  require('metascraper-logo-bimi')(),
  require('metascraper-logo')(),
  require('metascraper-logo-favicon')()
])

Try it

microlink https://www.cloudflare.com&meta

curl -G "https://api.microlink.io" \
  -d "url=https://www.cloudflare.com" \
  -d "meta=true"

import mql from '@microlink/mql'

const { data } = await mql('https://www.cloudflare.com', {
  meta: true
})

import requests

url = "https://api.microlink.io/"

querystring = {
    "url": "https://www.cloudflare.com",
    "meta": "true"
}

response = requests.get(url, params=querystring)

print(response.json())

require 'uri'
require 'net/http'

base_url = "https://api.microlink.io/"

params = {
  url: "https://www.cloudflare.com",
  meta: "true"
}

uri = URI(base_url)
uri.query = URI.encode_www_form(params)

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true

request = Net::HTTP::Get.new(uri)
response = http.request(request)

puts response.body

<?php

$baseUrl = "https://api.microlink.io/";

$params = [
    "url" => "https://www.cloudflare.com",
    "meta" => "true"
];

$query = http_build_query($params);
$url = $baseUrl . '?' . $query;

$curl = curl_init();

curl_setopt_array($curl, [
    CURLOPT_URL => $url,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 30,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "GET"
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
    echo "cURL Error #: " . $err;
} else {
    echo $response;
}

package main

import (
    "fmt"
    "net/http"
    "net/url"
    "io"
)

func main() {
    baseURL := "https://api.microlink.io"

    u, err := url.Parse(baseURL)
    if err != nil {
        panic(err)
    }
    q := u.Query()
    q.Set("url", "https://www.cloudflare.com")
    q.Set("meta", "true")
    u.RawQuery = q.Encode()

    req, err := http.NewRequest("GET", u.String(), nil)
    if err != nil {
        panic(err)
    }

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, err := io.ReadAll(resp.Body)
    if err != nil {
        panic(err)
    }

    fmt.Println(string(body))
}

import mql from '@microlink/mql'

const { data } = await mql('https://www.cloudflare.com', {
  meta: true
})

Add BIMI to your company

$ dig +short TXT default._bimi.microlink.io
"v=BIMI1; l=https://cdn.microlink.io/logo/logo.svg;"

• v=BIMI1 is the version.
• l= is the HTTPS URL of the SVG.
• a= is optional: a Verified Mark Certificate, if you want mailbox providers that require one (Gmail is the usual reason).