Glossary / Web fundamentals

CDN (Content Delivery Network)

A CDN is a network of servers distributed around the world that keeps copies of your website's files close to your visitors, so each person downloads from a nearby location instead of one distant origin server. The result is faster pages, lower load on your infrastructure, and resilience against traffic spikes. For any audience wider than one city, a CDN is one of the cheapest meaningful speed upgrades a site can get.