image/*

image/x-icon

File extensions: .ico

Windows icon format — the traditional favicon container.

What is image/x-icon?

image/x-icon is the historical media type served by /favicon.ico. Modern browsers also accept image/vnd.microsoft.icon, but image/x-icon has broader legacy support.

Typical usage

Site favicons, Windows shortcut icons.

HTTP header example

Response header

Content-Type: image/x-icon

Registration status

This media type is not officially registered with IANA. It is widely used in practice, but strict clients or standards-conformant tooling may not recognize it — check your consumer's tolerance.

Related MIME types

image/png

PNG

image/svg+xml

SVG

image/jpeg

JPEG

image/webp

WebP

image/avif

AVIF

image/gif

GIF