A Content Delivery Network (CDN) is a large distributed system of servers that are deployed in multiple data centers across the world. The main purpose of a CDN is to serve content to users with high availability and high performance. By caching content at multiple locations, a CDN can quickly serve a user's request for content, such as a web page, image, or video, from the closest server to the user's location. This reduces the latency and improves the speed at which content is delivered, resulting in a better user experience.
In addition to improving performance, CDNs also help to relieve the load on a website's origin server, which would otherwise be responsible for serving all requests for content. By distributing the content across a network of servers, a CDN can reduce the load on the origin server and improve the scalability of a website.
Overall, CDNs play an important role in delivering content to users on the internet, particularly for websites with a large amount of traffic or a global audience.
Here are some of the most popular Content Delivery Networks (CDN) along with their websites:
It's worth noting that the choice of a CDN depends on many factors such as cost, features, geographic coverage, and so on.