What is CDN and Why you Need it for Your Site – Infographic

What is a CDN?

A CDN (Content Delivery Network) is a large distributed system of servers deployed in multiple data centers in the Internet. The goal of a CDN is to serve content to end-users with high availability and high performance.

When a user comes to your blog, they are redirected to your web host’s server. Your web host’s server is located at a central location i.e Houston, TX. So every user on your website is accessing this one server to view your website. Now if you have high volume of traffic, then you your server is overloaded which leads to a slow loading site or even server crash. This is where a CDN comes in handy because it is a network of servers, these servers are spread through out the world.
 When you use a CDN, your static content is cached and stored on all of these servers. Now when a user visits your site (original server), the CDN technology redirects them to the closest server to their location.