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MIME Type

font/ttf

Font

MIME type for TrueType font files.

MIME type reference, HTTP example, browser usage, common mistakes, and related content.

What is the font/ttf MIME type?

The MIME type font/ttf is used to tell browsers, APIs, and servers how a file or response body should be interpreted.

MIME stands for Multipurpose Internet Mail Extensions, and MIME types are now a standard part of HTTP responses and web content delivery.

When a browser or client receives a response with font/ttf, it uses that information to decide how the content should be processed, rendered, downloaded, or executed.

Example

Content-Type: font/ttf

HTTP example

HTTP/1.1 200 OK
Content-Type: font/ttf
Content-Length: 1256

Common file extensions

.ttf

Common use cases

  • Desktop and web fonts
  • Legacy font compatibility
  • Custom font hosting

Common mistakes

  • Using the wrong MIME type for the file being served
  • Returning text/plain instead of font/ttf
  • Forgetting required parameters like charset when relevant
  • Using a deprecated MIME type in older server configurations
  • Serving assets with a mismatched Content-Type header, causing browser parsing issues

How browsers use it

Browsers use the Content-Type response header to decide how a response should be handled. For example, HTML is rendered as a page, CSS is parsed as styles, JavaScript is executed as script, and images are displayed visually. If the MIME type is incorrect, the browser may refuse to load the file correctly or may treat it as plain text or a download instead.

Browser support

Supported in browsers, but less optimized for web delivery than WOFF or WOFF2.

Developer note

Usable on the web, but WOFF and WOFF2 are usually preferred for browser delivery.

Related MIME types