Content distribution network is used to carry the content distribution and scheduling functions of websites, which can enable users to obtain information quickly when visiting websites, reduce the slow loading rate of websites and improve the access rate of users. Because cdn server can solve the access problem of a large number of users, it is often used to build large portals, shopping malls, video websites and so on.
Advantages of CDN server
1, access acceleration advantage
Providing users with fast access is one of the important advantages of CDN server. It solves the network delay caused by long-distance access and line access with different network bandwidths.
2. Resist cyber attacks
CDN server has the function of hiding the source server IP, and all the IP displayed to users belong to CDN nodes. When the network is attacked, these node servers will generally be attacked, but the source servers will not be harmed. Therefore, no matter how big the attack is, the source server can always maintain normal access.
3. Reduce the bandwidth of the source server
The CDN server reduces the bandwidth usage of the source server. Web-based data is distributed to CDN nodes, and the bandwidth of the source server only needs to meet the requirements of data transmission to CDN nodes, and there is no need to choose a large bandwidth for a large number of users to access, thus reducing the pressure on the source server.