In this digital age, online marketing is most powerful tool to attract customers. The promotional campaigns run by companies can generate a lot of traffic to site. Chances are the site may not able to handle the sudden surge in traffic and this can impact business reputation. This can arise questions like how popular sites manage heavy traffic? Is there any trick that you are not aware of? Well, CDN is answer of all these questions. A best way to increase speed and reduce resource usage of website is to use a Content Delivery Network (CDN).
What is CDN?
A CDN can be defined as collection of global servers located in various data centres across the world. These servers are responsible for delivery of sites and other site related content. Each CDN node, also known as Edge Servers, caches static content of site such as CSS/JS files, images and other structural components. This ensures quick deployment of static content by delivering it from closed location to visitor, thus improving server response time.
Working of CDN
CDN serves the content of site to user based on location through its ‘Distributed Data centres’ across globe. Each data centre has two main building blocks: Points of Presence (PoP) and Caching Edge Servers. PoPs are distributed data centres which use certain algorithms responsible for serving users in their geographical location. Caching Edge Servers store and deliver cached files to boost sites load times and reduce bandwidth consumption.
Image Source:keycdn
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CDN stores cached version of its content in various geographical locations named PoPs to minimize distance between site’s server and visitors. This makes request handling and responding much quicker. If user requests a file that is not available with the CDN, it loads the file from the origin server.
Benefits of Content Delivery Network (CDN)
Companies have to focus on improved user experience in terms of speed. By storing a cached version of content in data centres around the globe, CDN helps to distribute site traffic across multiple servers. Its various benefits include:
On the ending note, more than half the traffic is served by CDN and nearly everyone use it. It is a great way to increase speed while decreasing resource usage at same time. With faster loading and better availability offered by CDN, it is sure that website will come more attractive for visitors and users. Additionally, CDN doesn’t require any advanced coding knowledge; hence it is great solution for advanced users and beginners.
