CDN is an acronym for Content Delivery Network or it’s also known as Content Distribution Network.
A CDN is a network of web servers that deliver website pages, images and content to people who are browsing a website.
It’s designed to reduce the amount of time and the distance data needs to travel to reach the person viewing the website.
For example, if you are in London UK, visiting a website hosted on a server in Australia, the data would take a lot longer to reach you, than a website hosted on a web server in London.
So, to speed that process up, a Content Delivery Network will have servers dotted all over the world that mirror the same data.
In our example of a user looking at an Australian hosted website, the network might include a server in London, hence the data would be served from the London server, speeding up the process considerably.
Many CDN’s also feature additional options including image optimisation & protection from hackers and DDoS attacks.