What is Content Delivery Network (CDN)?

A content delivery network (CDN) is a distributed system of servers that are used to deliver content, such as websites, online applications, and video, to users over the internet. CDNs are designed to improve the performance and availability of content by storing copies of the content at multiple locations around the world and serving it to users from the location that is closest to them.

CDNs are used to deliver a wide variety of content, including websites, online applications, videos, and images. They work by storing copies of the content at multiple locations, known as edge servers, that are distributed around the world. When a user requests content from a CDN, the CDN routes the request to the edge server that is closest to the user, which minimizes the distance that the data has to travel and reduces the amount of time it takes for the content to be delivered.

CDNs are used by a wide range of organizations, including websites, online applications, and content providers, to improve the performance and availability of their content. They can also be used to reduce the load on a company's servers and to protect against attacks such as denial of service (DoS) attacks.

In conclusion, a content delivery network (CDN) is a distributed system of servers that are used to deliver content to users over the internet. CDNs are designed to improve the performance and availability of content by storing copies of the content at multiple locations around the world and serving it to users from the location that is closest to them. They are used by a wide range of organizations to improve the performance and availability of their content and to protect against attacks.