| A Content Delivery Network (CDN) is a system | | | | best out of your content. |
| of computers strategically placed at various points | | | | CDNs can cache web content and distribute your |
| along a network. Its purpose is to maximize | | | | static or streaming web content across their |
| bandwidth for access to data. It is specially aimed | | | | strategically placed international servers; making |
| at fast and efficient delivery of on-line content to | | | | sure that each and everyone of your international |
| visitors. | | | | audience gets the best seat in the house. So |
| CDNs employ a caching process to accomplish this | | | | even if you are located in USA, your CDN takes |
| goal for static content acceleration. When a user | | | | Egyptian visitors to the nearest server through |
| wishes to access some information, they are | | | | geographical mapping, giving them the best |
| directed to a server closest to them (Provider | | | | possible on line experience. |
| POP, Point of Presence) thereby eliminating the | | | | Always on: |
| bottleneck syndrome at the main server. Also | | | | Traffic congestion can really hamper a web |
| many providers optimize the delivery of content | | | | server's performance. Your viewers just might |
| from their POP's to users by measuring, latency, | | | | end up looking at error messages instead of your |
| packet lost and many other criteria's. | | | | content. This is certainly not the best way to |
| CDN is immensely beneficial. It copies data to the | | | | treat your customers. |
| various points in its network and hence enhances | | | | CDN is a sophisticated method of managing |
| the bandwidth usage. | | | | Internet traffic coming to your website. It |
| Scalability: | | | | spreads your content over its computers, |
| Today, a huge number of economic transactions | | | | effectively eliminating any hazards of heavy |
| are taking place on line. Therefore, commerce | | | | traffic and significantly enhancing your websites |
| websites must be ready to handle significant | | | | accessibility. |
| amounts of traffic at any time. A CDN is the | | | | Better services: |
| perfect tool to achieve this state of speediness | | | | CDNs are usually formally managed affairs. You |
| and reliability. CDNs can help distribute the heavy | | | | can expect great customer service and of course |
| load of traffic but directing it to various locations | | | | efficient infrastructure. Many CDNs offer value |
| thus avoiding congestion and help you get the | | | | add services such as encoding and trans coding |
| most business. On the other hand, the Internet is | | | | support, whole site delivery, etc. |
| becoming the center of the entertainment world. | | | | CDN providers buy transit and peer with different |
| Gaming, video streaming, watching movies on-line, | | | | tire one and local ISP providers to ensure you |
| social networking, and many other similar activities | | | | content is served through the best path link. |
| are now a part of the World Wide Web. | | | | What your ISP doesn't offer: |
| 2009 was said to be the year of social | | | | Think of something that your regular server or |
| networking which indirectly proves the fact that | | | | ISP hasn't put on offer. Chances are that there is |
| the need for CDNs is growing on a day to day | | | | a CDN out there offering those services. |
| basis. | | | | Going with a CDN makes financial sense as well. |
| Worldwide access: | | | | You won't need to pay for new server hardware |
| Many CDN service providers have international | | | | and routing. With CDNs you also get full access to |
| servers that help you reach an international | | | | global data centers and international load balancing |
| audience effectively. Whether you want to | | | | and fail over options. |
| stream live music or perhaps progressively | | | | It is important to note here that CDNs aren't |
| download videos, you can reach worldwide | | | | necessarily expensive. The key is to find the ideal |
| audience and make sure that everyone gets the | | | | provider to suit your needs. |