What dns technologies does henan cdn use? Cdn (content delivery network) depends on the advantages of server deployment in different places. Through the load balancing and scheduling functions of the central platform, users can obtain the required content nearby, improve the access speed of users, and reduce network congestion. As mentioned above, what dns technologies does cdn use?

First, you need to understand the working process of the following cdn:

1. When you need to watch a video, you will first initiate the resolution of the video domain name in the browser;

2. The access request will find the most appropriate cache server IP address from the client to the client according to the cdn schedule;

3. The client will start the link to the corresponding cache server to download the required video content;

4. If there is no corresponding video resource content in the corresponding cache, the server will search for the resource from the upper server, and then download the corresponding video resource to the local. When the next user accesses it, the local resource can be directly called from the cache.