A Content Delivery Network or CDN is an important part of a high traffic websites deployment and speed optimisation. The page speed of a website is an importance factor and can directly affect page views, bounce rates, visitor loyalty and probably most importantly, your search engine rankings. Many well know websites such as Mashable, CNN, The New York Times & TechCrunch distribute their content using CDNs.
If you are hosting all the resources (like files & images etc) that make up your website on the same server, the browser has to make many different calls to the same server in order to retrieve and display the data. All your data coming from the same server will impact the speed of your website and slow it down.
A CDN as its name suggest is a Content Delivery Network that helps you to distribute your websites static content (files, scripts & images etc) onto multiple high speed servers located around the world reducing latency and providing high data transfer speeds. If you host your content or deploy it across multiple servers, the parallel download process across multiple servers will happen simultaneously and the website load time will be improve dramatically and can help reduce the hosting bandwidth that you use.
Many of the big search engines (like Google) now consider website page speed as an important ranking factor. It is therefore important to have a fast website to help increase your rankings.
As mentioned above, when we distribute our content across the multiple servers around the world, our data is then servered to our website visitor via the fastest possible route.
Setting up a CDN isn’t a particularly complicated task, especially if your website is using one of the popular Content Management Systemes like WordPress or Joomla as there are a variety of components, extensions and plugins available that will help you distribute your content.
There are many commercial and free Content Delivery Network services available. Below are a few of the most popular CDNs:
Commercial CDNs
Akamai Technologies
Amazon CloudFront
CDNetworks
Free CDNs
Coral CDN
FreeCast
MediaBlog
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Search Engine Optimisation (SEO) is essential in order to get higher ranking in the major search engines such as Google, Yahoo and Bing. A higher position in the search engines will drive your customer enquiries and sales.