 Content delivery network

A content delivery network uses delivery infrastructure, often at multiple locations, to supply content and direct requests to suitable delivery endpoints. It can retain objects through caching or retrieve them from an origin. Distribution across sites does not imply that those sites have independent administrative control.^[ref]

A Content Delivery Network (CDN) is a system of distributed servers that work together to deliver digital content (such as web pages, images, videos, and other types of data) to users based on their geographic location. The primary goal of a CDN is to improve the performance, speed, and reliability of content delivery to end users.