Content Delivery Network (CDN) is a new layer of network architecture built on the existing internet. It consists of high-performance cache nodes distributed around the globe to accelerate internet content delivery. These nodes store your content based on caching policies. When a user makes a content request, it will be routed to the node closest to the user, reducing access delay and improving availability.
CDN offers an effective solution to the following network issues:
CDN is easy to use. You do not need to adjust your business structure or manage any complex configurations. For more information, please see Getting Started.
For example, if your business origin server's domain name is
www.test.com and has been connected with the CDN to activate the acceleration service, when a user makes an HTTP request, the request will be processed as shown below:
The process is detailed below:
www.test.com, a domain name resolution request will be initiated to the local DNS.
www.test.com, it will find that CNAME
www.test.com.cdn.dnsv1.comhas been configured, so the resolution request will be sent to Tencent DNS (GSLB), the proprietary scheduling system of Tencent Cloud that will assign the optimal node IP for the request.