CDN (Content Delivery Network)
Content Delivery Network
A system that places servers around the world to deliver websites faster
In Simple Terms
A CDN is a technology that temporarily stores website data — like images and videos — on many servers placed around the world, then delivers it from the server closest to each user. Normally, when traffic concentrates on a single main server or users access it from far away, load times can slow down or the server can crash. With a CDN, relay servers in different regions deliver the data on behalf of the main server. As a result, it helps improve website load speeds and distribute traffic during periods of high access.
Behind the Name
Short for Content Delivery Network — a network infrastructure designed to efficiently distribute website data like images and videos to users around the world.
Take a Closer Look!
A CDN is a technology that copies website data to many servers placed around the world and delivers it from the server closest to each user.
For example, users in Japan receive data from a server in Japan, while users in the United States receive it from a server in the US.
Most websites store their data on a single main server.
But when people all over the world access that one server, the distance can slow down load times — and if too much traffic hits at once, the server can become overwhelmed.
That's where a CDN comes in.
With a CDN, relay servers in different parts of the world temporarily store the data and deliver it in place of the main server.
The result is a website that loads quickly and stays stable even under heavy traffic.