Shulou(Shulou.com)06/03 Report--

After purchasing the CDN service, users will be more concerned about the actual effect in the process of using it. First of all, make sure that it has been activated successfully, and then follow the basic steps to add accelerated domain names and configure CNAME. After all, you can test whether the CDN acceleration is successful. Today, I will introduce to you the basic concepts of CDN.

What is cdn? Cdn is a network acceleration technology. By placing node cloud servers everywhere in the network to form a layer of intelligent virtual network based on the existing Internet, the CDN system can redirect the user's request to the nearest service node according to the comprehensive information such as network traffic, connection of each node, load status, distance to the user and response time.

The key technologies of cdn:

Content publishing: it publishes or delivers content to the nearest remote service point (POP) by means of indexing, caching, streaming splitting, Multicast and other technologies

Content routing: it is a holistic network load balancing technology that balances user requests on multiple remote POP through the redirect (DNS) mechanism in the content router, so that user requests are responded to by the nearest content source.

Content switching: it intelligently balances load and traffic on POP cache servers based on content availability, server availability and user background, using application layer switching, stream splitting, redirection (ICP, WCCP) and other technologies.

The above is an introduction to what cdn is.

If there is anything else you need to know, you can find our CDN technical engineer on the official website. CDN technical engineer has more than ten years of experience in the industry, so it will be more detailed and professional than the editor's answer. Official website link www.yisu.com

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