Graphics Interchange Format (GIF)

GIF (Graphics Interchange Format) is a digital image format that can display both static images and simple animations. These animated GIFs show a sequence of frames on a loop. They’re often to demonstrate short processes, show product features, or add movement to web content. While GIFs can make content more engaging, they should can slow down your website so they should be used carefully.

See also: JPEG, SVG, PNG

Further reading: How to Optimise Images for Better Web Performance