Would you like to lower the cost of digital video broadcasting by using CDN?
Would you like to please the customer by increasing the upload speed of the video?
If you answered yes to one of two questions; you can continue reading.
One of the main concepts in digital video and broadcasting is CDN(Content Delivery Network) structures. CDN infrastructure that existed before the launch of the online video market is an abstract infrastructure we can not touch. Whether we are aware or not, we all make contact with CDNs while visiting the web site during the day, watching videos or shopping online.
What is CDN?
What exactly are these CDNs? The CDN structure is an economic distribution infrastructure that enables content to be delivered to the browser faster than normal. It keeps a copy of content and videos frequently requested by a large number of Internet users, so you can get a quick response. In addition to the satisfaction of those who enter the site without delay, there is also an indirect gain. For example, if Google sees your site open quickly, it will highlight you. In addition, the CDN structure, which reduces site load time, lowers core bandwidth consumption and reduces operational costs.
The CDN concept will be better understood when it is thought that every new individual who becomes online on the Internet is more impatient than the previous generation.
Today, more than half of Internet traffic is diverted by CDNs. As the number of websites targeting the global masses increases, the popularity of CDNs increases and service fees decrease. There are also free CDN services.
What are CDN Types?
After responding to the question of “What is CDN?”, it is useful to look at its CDN types. We can evaluate three categories according to the content being static and dynamic; General content, on-demand video, and live video. Recorded video transmission is not different from a large application file. These CDNs differ from general purpose CDNs by starting to use the media server. When you think about the way the video is watched, you have to use the media server software because of the need for a resolution that adapts according to different speeds and because of a large number of viewers who watch the video at different points. At the same time, this technology will also reduce data fees that content owners have to pay. Only the amount of the watched part will be paid.There are not many companies that have developed media servers that allow the sending of watched part instead of downloading the entire video.
Recently, HTTP broadcasts, often use HTTP servers (Apache or Windows Server). The HTTP broadcast is also compatible with the Adaptive Bitrate (ABR). Thanks to the ABR, the videos are split into 2 to 10-second intervals to provide the viewer with optimum speed. Ant Media Server serves on ABR market.
CDN benefits in summary
- Increases content loading speed
- Blocks spams
- Allows you to control the traffic load
- Reduces bandwidth consumption
- Provides load balancing between servers
- Protect your web site against DDoS attacks.
Which CDN Service Should be Chosen?
After asking "What is it?", "What does it do?" and "How do we do it?" we can ask "Which one?". Basically, CDN vendors may shorten the loading and opening times of their content, but they may show performance differences among themselves. To see which CDN performance is better, please visit https://www.cedexis.com/get-the-data/country-report/. All of the CDN vendors almost meet basic speed requirements. There are differences in the level of milliseconds between them.
There are many alternatives to meet CDN needs. Firms are generally chosen CDN vendors according to POP count. Since the POP count increases, the content loading speeds will increase. For example, companies aiming to grow in Europe prefer CDN firms with a large number of POPs located in that region. In addition to the number of POPs, engineering support and urgent deletion/rescue factors should also be considered.