A video CDN, video content distribution network, is a large geographically dispersed network of servers delivering live and on-demand, high-quality videos to web-connected devices. These specialized video streaming server networks accelerate delivery through caching, which stores content temporarily on multiple servers throughout the video CDN. When a viewer submits a request, the nearest content cashing server the user’s location delivers the video.

To keep up with increasing demand, network service providers realize the need to build their own content distribution networks supporting the VoD server (video-on-demand) and IPTV server (Internet Protocol Television) technology. Network service providers that deploy their own video CDN can benefit from:

  • Reducing traffic on the backbone network, which improves video content and web performance overall.

  • Creating and deploying value-added, targeted services to attract new customers and retain existing subscribers.

  • Content providers also benefit from a video CDN, as customer conversion rates increase and loyalty strengthens.

  • CDN video streaming can greatly accelerate the delivery of video media and make the environment more secure and reliable. CDNs provide a low latency viewing experience, which is the most important thing for user satisfaction.

When deciding what CDN to use, there are several factors that you consider:

  1. Geography – Are your viewers distributed all across the globe, or mainly concentrated to certain continents or countries like Asia, Europe, USA, China. The reason for pointing out is certain top tier CDNs have a low presence in Asia, especially China while some of the CDNs are generally built for specific areas. Many CDNs especially serve to the USA only.

  2. Scale – Are you watching live stream international sports events or Video on Demand services? Only a few CDNs in the world are currently efficient enough to cater to a huge scale worldwide specifically for live streaming.

  3. Pricing – Are you a startup that is more comfortable with pay-per-use pricing or are you able to commit considerable bandwidth beforehand. These are the questions you need to consider. Different CDNs cater to different business models.