What is a CDN?

A content delivery network (CDN) is a geographically distributed group of servers that caches content close to end users. A CDN allows for the quick transfer of assets needed for loading Internet content, including HTML pages, JavaScript files, stylesheets, images, and videos. Common CDN providers include Cloudflare, Fastly and Akamai.

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What is caching?

Caching is a system design concept that involves storing frequently accessed data in a location that is easily and quickly accessible. The purpose of caching is to improve the performance and efficiency of a system by reducing the amount of time it takes to access frequently accessed data.

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What is a GIF?

GIF stands for Graphics Interchange Format and it is a type of raster image file format that allows for animations. GIFs are made up of a series of images (or frames) that are displayed in rapid succession, creating the illusion of motion. GIFs can depict anything and are hence not tied to a specific look.

About GIFs...