Shulou(Shulou.com)06/01 Report--

Preface

The full name of CDN is Content Delivery Network, that is, content delivery network. The basic idea is to avoid the bottlenecks and links that may affect the speed and stability of data transmission on the Internet as far as possible, so as to make the content transmission faster and more stable. By placing node 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 in real time according to the comprehensive information such as network traffic, connection of each node, load status, distance to the user and response time. Its purpose is to enable users to get the content they need nearby, solve the situation of Internet network congestion, and improve the response speed of users visiting the website.

1.Stackpath all-around CDN

In 2016, Stackpath acquired MaxCDN and included MaxCDN services in the Stackpath brand. MaxCDN has been a very popular CDN service for many years, especially for WordPress users. Now, the two are one.

Like Cloudflare, Stackpath provides CDN and security services. However, Stackpath gives you a lot of choices, you can choose a specific service, or use a full "edge delivery package" that includes CDN, firewall, managed DNS, global DDoS protection, and so on.

Stackpath's global DDoS protection, StackPath has full global DDoS protection, which can effectively mitigate any DDoS attacks that flood your site due to a large amount of traffic. StackPath's global network mitigates the largest and most complex DDoS attacks and minimizes the impact on services. StackPath DDoS mitigation technology can address all DDoS attack methods, including UDP,SYN and HTTP flooding, and is being further developed to block emerging technologies and strategies.

Currently, Stackpath provides more than 65 CDN nodes on every livable continent except Africa.

Because Stackpath is a foreign CDN service provider, it is very easy to set up. All you have to do is enter the URL of your site, and Stackpath will process specific resources and extract them to its server. Then you can start using the CDN service provided from Stackpath's edge server.

2. CloudFlare

CloudFlare was founded in 2009, is a famous foreign free CDN website acceleration service company, CloudFlare also provides real-time security services and network optimization, etc., using the free + value-added model, can be used for free, but also fee-based services. There are also many free and easy-to-use CDN in China, but they all need to be put on record before they can be used. For websites without filing, you can choose to use foreign CDN tools, and the operation is not as troublesome as we imagined. Therefore, in China, CloudFlare has also been respected by many major websites and blogs.

CloudFlare's CDN nodes are mainly distributed in the Netherlands, the United States, Hong Kong, France, Japan and other countries and regions. Using CloudFlare's CDN nodes in the Asia-Pacific region can greatly accelerate your host access speed in the United States or Europe. Currently, free CDN nodes are all in the United States, and only the enterprise version can allocate domestic nodes.

CloudFlare is famous for its superb technology, powerful hidden IP technology, and can effectively defend against DDOS attacks. CC technology is one of the few in the world, and many foreign websites use it. However, it should be emphasized that CDN acceleration is not applicable to all foreign hosts. If you use a good VPS, cloud host and server, the access speed is not very different from that of the domestic host, or the response is slower. But most webmasters are grassroots, and the hosts they use are generally configured, so they can use CloudFlare's CDN for free acceleration.

CloudFlare only caches the static files of the site on each node, not a mirror, so if something goes wrong with your host, the site is inaccessible. If the domestic host uses CloudFlare, it is possible that the lines of many cities can not access foreign nodes, and the speed and access will be affected, but when your website is attacked, you can use CloudFlare for defense, the effect is very good.

3. MCI Communications Services Ltd. (Verizon Commercial Verizon Business) EdgeCast CDN

MCI Communications Services Co., Ltd., formerly known as WorldCom (WorldCom), is a communications company, which went bankrupt in 2003 due to accounting scandals. In January 2006, it was acquired by Verizon Business Verizon Business for $7.6 billion and reorganized into its business unit.

The CDN business of American MCI Communication Service Co., Ltd. is popular with global Internet companies. Its CDN nodes are all over the world, and the nodes in Asia are mainly distributed in Japan and the Asia-Pacific region.

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