Nowadays, the public has higher and higher requirements for Internet services, and naturally they are more concerned about the speed of website access. Although the bandwidth continues to increase, the number of users is also increasing. Affected by factors such as the load of the Web server and the transmission distance, the response speed problem is often criticized.
User experience is a prerequisite for websites to attract and retain users. There is a well-known 8-second principle in the Internet neighborhood. When users visit a Web page, if they wait for more than 8 seconds, they will feel impatient, and there will be more 30% of users give up waiting, causing serious user loss, which directly reduces user experience and viscosity.
CDN (Content Delivery Network) is a distributed content delivery network built on a data network. CDN can significantly improve the efficiency of information flow in the Internet network. Technically, it solves the problems of small network bandwidth, large user visits, and uneven distribution of network nodes, and improves the response speed of the website. The purpose is to add a new network architecture to the existing Internet to push the content that the user wants to access to the place closest to the user, so that the user can obtain the desired content nearby, just like visiting the local; the idea of CDN technology It is to avoid links on the Internet that may affect the speed and stability of data transmission as much as possible to prevent network congestion, so that users can obtain high-speed experience and quality assurance. The application of CDN technology to shorten the distance between the website and the user is one of the most effective ways to improve the access speed, and to ensure that the content serves the user's request in the most efficient way.
The realization of CDN technology can not only increase the speed of website access, but also has a good effect in improving the stability of the website and optimizing the bandwidth. Using CDN acceleration, remote access users will automatically select servers based on DNS load balancing technology when accessing sites, and read website data from nearby servers during access, reducing remote access bandwidth and time, sharing network traffic, and reducing the original site WEB server load and other functions; in addition, professional CDN network load balancing and distributed storage technology strengthen the reliability of the website, so that the website will never be down.
CDN acceleration is strong against attacks, because CDN acceleration service technology can promote clusters to resist attacks, and the widely distributed CDN nodes and the intelligent redundancy mechanism between nodes can deal with most Internet attack events. CDN can provide the most beneficial guarantee for the fast, safe, stable, and expandable network.
