I'm a beginner so please excuse the naivety of this question:

 

WHAT IS A CONTENT DELIVERY NETWORK?

 

And where does it apply / get used?

 

 

Any feedback would be much appreciated.

In a nutshell, store all of your static files (images, vids etc) on a CDN.

In your website, link to all of your static files via the CDN.

The CDN is a network of servers all containing your static files.

It then serves the files from the nearest server to the browser/client reducing load time to the end user.

 

As I say, in a nutshell, bit more to it than that...

A CDN is basically a set of machines at points around the world that will serve up your content, taking the load off your servers and making things quicker due to proximity (i.e. US user gets your files from a US server, Asian user gets it from an Asian server).

 

Most often you'd use them to serve static content like javascript, CSS, images and so on. If you do any kind of video you basically have no choice

... maybe i'm becoming too jaded for this job.