What is a CDN?


Many a time, internet users aks this question; what is CDN? Although there is a lot of information about what a CDN is, this article will let you know what a CDN is and how it works.

A CDN also was known as a content delivery network, are the apparent backbone of the internet that are mainly tasked with content delivery. In other words, CDN involves geographically located a group of servers that are aimed at ensuring a quick conveyance of internet content by working together.It is not easy to know it but the fact is as an internet user you always across CDNs everytime you read articles on publications, whenever you are shopping online when streaming YouTube videos or loading social media feeds.
A CDN is mostly used for swift delivery of components that are necessary for loading internet content such as HTML pages, javascript documents, photos, and videos.
To learn why CDNs are popularly utilized, it is good to identify the reasons why they are designed which is latency; the frustrating interruption that you come across immediately you need to load a website until when it displays its content on your monitor. That interruption between when you request to load a web page until when its content is displayed comes as a result of some factors which are mostly due to a particular given web page.

Is there a difference between a CDN and a web host?
Well, a CDN is not used to host content and neither can it used to substitute the reason why proper web hosting is required, however, it aids to cache content at the far end of the network, thus boosting website performance.

Why a CDN is useful
There are numerous benefits of using a CDN but the benefits depend on how big or small an internet property is and it’s needed. However, below is a list of the benefits.

1. Boosting website load times:- By delivering website content to website users via a nearby CDN server, users get an opportunity to experience quick page loading times. Remember a slow loading website can piss off visitors and bouncing rates are likely to be experienced in such situations. With a CDN in place, bouncing rates are minimized and visitors are likely to spend most of their time on the site.

2. Minimizing bandwidth rates:- Every website hosting relies on bandwidth consumption. Since a CDN is mainly used for caching content, the amount of data is cut down thus minimizing the hosting charges for website owners.

How CDN works
A CDN is essentially a group of connected computers with the aim of distributing content as fast, affordable, consistent and securely as possible. As the need for an enhanced speed and connectivity comes in, a CDN allocates servers at the exchange points at the interval of networks. These intervals known as Internet exchange points are core locations that enable diverse internet providers to connect so that they can access to traffic coming from their different networks. As a result of accessing the locations, a CDN provider gets an opportunity to cut down costs and increase website loading times.