A content delivery network (CDN) is a distributed network of servers that are designed to deliver content to users as quickly and efficiently as possible. CDNs work by placing copies of static content (such as images, videos, and other files) on servers in locations around the world, so that the content can be delivered to users from the server that is closest to them. This reduces the distance that the data needs to travel, which can significantly improve the performance and speed of a website.
CDNs can be used to deliver a variety of content types, including HTML pages, JavaScript and CSS files, and media files such as images and videos. They are often used to improve the performance of websites and other online applications that have a global audience, as they can reduce the latency of content delivery by serving content from servers that are closer to the user. CDNs can also help to reduce the load on a website’s primary server, which can improve the overall scalability and reliability of the website.