Content Delivery Network (CDN) is a system of distributed servers available globally. It delivers web pages and other contents to the user based on the geographical locations of the user, content delivery server, and origin of the web page. It serves the content to end-users with high availability and performance. It reduces the bandwidth costs and also improves the loading time of the webpage. Some of the CDN providers are Cloudflare, Rackspace, Akamai, and MaxCDN.