
The user accesses the website by typing its address or domain name. Let’s say it is www.huawei.com.
The local DNS returns the cached information to the user, effectively ending the request.
The local DNS sends a resolution request to the authoritative DNS.
The authoritative DNS passes the request via a CNAME record.
The local DNS redirects same request to the CDN.
The CDN will determine which node can respond the fastest to this
The user’s browser gets the IP address of the CDN node as resolved in the intelligent domain resolution stage.
The user’s browser requests access from recommended CDN node to access the website content.
The recommended CDN node will send the desired resource to the user, which then ends the request.
The recommended CDN will send a request to the origin server to retrieve the needed content.
The origin server will send the requested resource to the CDN node, where it will be cached by the CDN