ImageBinary

`image/vnd.microsoft.icon`

ICO (Official)

Reference for image/vnd.microsoft.icon, the official registered MIME type for Windows ICO icon files.

MIME Type Detector

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Expected extensions: .ico

HTTP Content-Type Header

HTTP Header

Content-Type: image/vnd.microsoft.icon

Associated File Extensions

.ico

Quick Facts

MIME Type	image/vnd.microsoft.icon
Category	Image
Type	Binary
Extensions	.ico

Common Usage

This is the officially registered IANA MIME type for ICO files, replacing the unofficial image/x-icon. ICO files contain multiple icon sizes for Windows applications, website favicons, and desktop shortcuts.

Both MIME types are widely accepted by browsers.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.ico" type="image/vnd.microsoft.icon">

<!-- Or for script/media elements -->
<script type="image/vnd.microsoft.icon" src="file.ico"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('image/vnd.microsoft.icon');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'image/vnd.microsoft.icon' });

nginx

# nginx.conf — add to types block or use default
types {
    image/vnd.microsoft.icon  ico;
}

# Or set for a specific location
location /api/ {
    default_type image/vnd.microsoft.icon;
}