A Content Delivery Network (CDN) is essentially a network of geographically dispersed servers. Each CDN node (also called Edge Servers) caches the static content of a site like the images, CSS/JavaScript files and other structural components.
A Content Delivery Network (CDN) serves your static resources from Edge nodes around the world.
When a user requests your site, the node closest in proximity to the user will deliver the static content, ensuring the shortest distance for the data to travel (i.e., reduced latency), therefore providing the fastest site experience.
CDNs are a good way to ensure a consistently fast site experience for all your visitors, around the world.
Read our blog article to learn more about why you should use CDNs.