Best CDN 2021

CDN is a popular solution which is used to increase the speed and security of websites. There are various choice in the industry, some are free and some are paid. And here will introduct the Best CDN service in the industry which are reliable and affordable.

Why CDN:

  • Better Page Loading with CDN Service
  • More Security with CDN
  • CDN Service is Affordable
  • Best for All-sizes of website

Most Popular CDN

Incapsula Review

One of the best CDN providers worldwide, high performance with many optimized features

  • Global Network with Intelligent Caching
  • High-Speed Storage
  • Security and bot management
$59/mo 14 Days Free

CloudFlare Review

World-largest CDN, extremely popular within individuals and small businesses

  • SSL Enabled, Free Option Available
  • Baidu Partnership, Fast in China
  • Paid Option for Better Speed & Reliability
$0/mo Free

MaxCDN Review

Popular CDN service prodiver within small businesses, fast & reliable

  • 100% SSD Server
  • 20+ Datacenter with Smart Caching
  • Next Generation Security

Akamai Review

Lead in CDN, first choice of enterprises. Offer CDN with Uncompromised speed and security

  • Best CDN World Wide
  • Fastest CDN Never Stop
  • Global CDN Tracking

CDN77 Review

Popular CDN service used by many IT firms, over 30+ PoPs worldwide

  • Over 2Tbps Traffic
  • Glogal Data Centers
  • Latest Technologies & 24/7 Support
$0.049 for GB

Azure CDN Review

Designed for Azure Cloud, Global CDN service for high traffic websites

  • CDN for Any Device
  • Accelerated content performance
  • Easy to Use and Tracking
$0.087 per GB

CDN NewsMore

ChinaNetCenter Net Profit Margin Decreases By 33% As Cloud Computing Vendors Jumping Into the Fray

China’s leading CDN platform provider ChinaNetCenter issued its performance report for the first quarters of the year last Friday, which shows a net income of 522 million to 614 million yuan, decreasing by 33 percent year-over-year to 43 percent.


Aurora Private Equity and ChinaNetCenter to Establish Industrial Investment Fund with RMB 500M in Initiative

On July 13th, ChinaNetCenter announced that its wholly-owned subsidiary, Shanghai ChinaNetCenter Investment Management Company Limited and Shanghai Aurora Private Equity reached an agreement to jointly invested and established Shanghai ChianNetCenter & Aurora Private Equity Industrial Investment Fund.


Youku CDN Business Merged With Alibaba Cloud, Reducing CDN Price Up to 35%

Alibaba Cloud, the cloud computing arm and a business unit of Alibaba Group, recently announced that it has completed the combination of Youku CDN business and video cloud business as well as team integration.


Hosting Review


What is CDN?

The term CDN stands for Content Delivery Network. It is a group of distributed servers, networked together, so that they can easily deliver webpages and web content to users whenever they require it. The key feature of CDN includes it overcomes the location barrier. Whenever users ask for content or want to visit a webpage the servers in the CDN synchronize and optimize within themselves to serve the user demand. An user sitting in China may look for a data which is kept in a server in Germany. So, whenever the user looks for the data, the content has to pass through number of network hops to reach the Chinese user. But when there are high number of user traffic, the hops get busy and the service quality fails. CDN came as a solution for it. In CDN the content is shared among the servers so whenever a user demands it the content can be locally produce without affecting the efficiency of other servers.

What is CDN and how it works

How CDN works?

Speed, crash resistance, improved user experience and better SEO performance are few of the core benefits that CDN delivers to web developers and operators. The CDN comprises of origin server, edge server, end user and their connections. Origin server is the primary one which is connected with edge servers to serve the end users. Developers need to use ligttpd, BGP, anycast type of technology standards to develop CDN. Notably, only the static content are distributable through CDN. The static content get hosted on web host servers that connects with network of servers situated in different parts of the world and cache the content. Once user’s request is generated the request is transmitted in the edge server that results in creation of point of presence (PoP). PoP then estimates the user proximity and provides the most efficient load time solution.

For improving the user experience, and reducing the transmission expenses, many businesses are nowadays preferring to create servers which have copies of the multiple data present in strategic locations all around the world. It has benefits in operation and in keeping the cost down.

What kind of performance would the CDN try to solve?

Most of the content delivery network can easily solve the ancillary problems like reducing the given bandwidth, making improvisation to the global availability, etc. And the interesting aspect is that they solve the major problem which is addressing the latency. Here the latency means the basic amount of time it would take the host server for receiving the particular process, delivering the given request for the particular page resources like CSS file, images, etc.

Basically, the latency would simply depend on how far the given user is away from the server. And the interesting aspect is that it is compounded by the available number of resources which contains the given pages. Now for example, if all the given resources of a particular website are situated in San Francisco, and a user from London is visiting the page, then each of the request would take a long trip from London to SF and then back to the London server. So, just imagine if a web page has about 100 objects (in most of the cases this is low in terms of normal ones) then the browser would have to make about 100 individual request to the given server of the web in order to retrieve the given objects.

Here, the latency is somewhere about 75 to 140ms range. However, somewhat it can be quite higher for most of the mobile users who constantly access the website over the 3G internet network. Somewhat this can just add up to about two or three seconds of the load time. This is somewhat a huge deal when one considers the main factor among the various aspects which could slow down the pages.

Can the CDN assist in all situations?

It is important to have CDN for various websites, however, one may have to know that it is not always necessary for all kinds of websites. For example, just think about it. If you are just locally hosting and all the users are the local person, then you won’t need the CDN.

Frankly, to what some of the major website owners believe, it is important to note that the CDN is a simple standalone and best performance solution. It is important to keep in mind about what is the meaning of e-commerce is and the SaaS worlds. These are the main two common kinds of performance pains which are just third-party contents and especially server-sided ones. In such cases, the CDN cannot be of a help for you.

However, when you have lots of websites to run and you have users from different parts of the world, CDN is essential to give them better user experience. CDN is indeed related with your traffic management. So, whenever you have lots of traffic, that are organic, you need to go for content delivery network.

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