A content delivery network or CDN is a means of efficiently distributing content around the globe. It helps offload the burden of serving content (video files, web pages, etc.) from a single server to a large network of distributed servers.
An advantage of using a CDN It helps offload the burden of serving content (video files, web pages, etc.) from a single server to a large network of distributed servers.
CDN is the place you stream TO. From there, many platforms can resend your content out to another place, and/or record it for future viewing. YouTube is probably the most popular CDN.