// mime type · image type
image/gif
GIF image · .gif
What image/gif is
image/gif supports simple animation and a limited 256-colour palette. It's largely superseded by video formats and animated WebP/AVIF for anything beyond small clips.
How it's used
You'll see this as a Content-Type value on requests and responses — for example Content-Type: image/gif. It's the type associated with the .gif file extension. Image types tell the browser how to decode and render a picture.