By Rupal Shirpurkar, Business Head (Cloud BU - APAC) of Click2Cloud Inc. and Alibaba Cloud MVP
Alibaba Cloud CDN is a virtual network that consists of globally distributed edge nodes. Alibaba Cloud CDN reduces the load on origin servers and prevents network congestion. Alibaba Cloud CDN can accelerate content delivery for websites across multiple regions or scenarios.
Origin servers can cache files to globally distributed edge nodes using Alibaba Cloud CDN. Rather than accessing origin servers, users can retrieve resources from the nearest edge node. This speeds up content delivery and reduces loads on origin servers. IPv6 is supported by a few edge nodes.
Content Delivery Networks (CDN) is a service that accelerates content delivery. A CDN helps minimize delays in web page content loading by reducing the physical distance between the server and the user. The same high-quality content can be viewed by users worldwide without affecting the loading speed. The main benefit of a CDN is that it makes your website faster.
Let's dive deeper into the inner workings of a CDN with an example. Consider a scenario where a server that is hosting a website went down, supporting users worldwide. They are accessing this server, and the website is down. You can consider a scenario where these users are located at different locations, such as Mainland China, Hong Kong, or Singapore. They all are utilizing the same website from a particular location where this website is hosted. The problem they face is that the farther the location, the slower the website runs for those users. This is where the CDN comes into the picture.
Does it accomplish the speed increase by reducing the distance between the user and the content or the server providing the content? It places its CDN endpoints in as many locations around the world as possible. In that case, if a user from a specific region tries to access the content from a website, it is retrieved by the CDN service first and then distributed worldwide. Hence, users can access the content from their nearest geographical locations. It benefits the reduction of load, increases in uptime, and increases in security.
Fig. 1 illustrates Alibaba Cloud CDN's architecture. Alibaba Cloud CDN contains scheduling, link quality, caching, and support systems.
Fig 1: Alibaba Cloud CDN Architecture
Support System: The support system manages data intelligence and configuration controls of the Five-hundred-meter Aperture Spherical radio Telescope (FAST). Monitoring resources, analyzing data, and managing configurations are all possible with the support system.
Alibaba Cloud CDN can separate the acceleration of static and dynamic content. Some of the benefits of Alibaba Cloud CDN are listed below:
Fig 2: Key Benefits of Alibaba Cloud CDN
This article explains Content Delivery Networks (CDN) and how they work. Alibaba Cloud CDN makes your web content scalable, secure, smooth and results in IT cost reduction.
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