FontBinary

`font/otf`

OpenType Font

Reference for font/otf, the MIME type for OpenType font files supporting advanced typographic features.

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Expected extensions: .otf

HTTP Content-Type Header

HTTP Header

Content-Type: font/otf

Associated File Extensions

.otf

Quick Facts

MIME Type	font/otf
Category	Font
Type	Binary
Extensions	.otf

Common Usage

OpenType extends TrueType with support for PostScript outlines (CFF), advanced typographic features (ligatures, swashes, small caps), and larger character sets. OTF is the professional standard for fonts, used by designers, typesetters, and web developers.

Code Examples

HTML

<!-- Link or embed with explicit type -->
<link rel="stylesheet" href="file.otf" type="font/otf">

<!-- Or for script/media elements -->
<script type="font/otf" src="file.otf"></script>

Node.js

// Express.js
app.get('/file', (req, res) => {
  res.type('font/otf');
  res.send(data);
});

// Node.js http
res.writeHead(200, { 'Content-Type': 'font/otf' });

nginx

# nginx.conf — add to types block or use default
types {
    font/otf  otf;
}

# Or set for a specific location
location /api/ {
    default_type font/otf;
}