Content delivery network includes network of distributed servers that provides web pages and web content to users based on their geographic locations. The content delivery network provides speedy delivery of websites which bear high traffic. At its core, the content delivery network performs two crucial functions. First, CDN caches the content at the edge of the network in order to reduce the traffic traversing the network. Second, provides multiprotocol and multiservice streaming capabilities thereby allowing operator to adapt content from any IP device close to user consuming it. In general, typical functionality of CDN includes request redirection and content delivery services, content outsourcing and distribution services, content negotiation service and management service.

The two major things that have marked the evolution of internet are mobile technology and social media. For example, since its inception in 2004, Facebook today contain much more than 1,000 million subscribers. With very low investment, any business can reach large market irrespective of its location. According to Internet World Statics, the number of internet users for June 2012 were estimated to be 0.24 billion. Additionally, growing IP video traffic is expected to boost the CDN market. Today, video consumption over mobile devices and internet is growing at unparalleled rate. As network operators become aware of advantages of CDN, numerous cable operators and telcos in Europe and North America have launched CDN initiatives. Additionally, as network operators increasingly partner with content owners in order to deliver high quality contents and services, the CDN market is expect to grow. However, as more and more new players are entering in the CDN market, intensive competition has led to huge pricing pressure on players.

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