A content delivery network (CDN) distributes content to users via a network of servers across an area. These are usually geographically positioned to deliver content to users as fast as possible, so a user accessing the site from the other side of the world doesn’t have to wait as long as they are actually downloading the content from the server closest to their location.

CDNs are a great way to speed up your website, particularly when your user base may span a large region.