Dynamic Route for Content Delivery Network (DCDN) is a CDN service developed by Alibaba Cloud to accelerate static and dynamic content delivery. This service provides an all-purpose solution to resolve issues of high latency, packet loss, and service instability. These issues may occur when your website contains both static and dynamic content, content is delivered across network providers, your network is unstable, only one origin server is used, network traffic spikes, or a network congestion occurs. You can use DCDN to improve the overall performance of your website and accelerate content delivery to improve user experience.

For information about how to get started with Alibaba Cloud DCDN, see Quick start.

Architecture

Alibaba Cloud DCDN uses smart routing to differentiate requested content, so that the acceleration of dynamic and static content is separated. The following architecture diagram shows how DCDN works.

How DCDN works
  • Intelligent differentiation of dynamic and static content: After a domain name is added to Alibaba Cloud DCDN, the dynamic and static content accessed through the domain is intelligently identified and differentiated.
  • Separate acceleration of dynamic and static content delivery: Static content delivery is accelerated by Alibaba Cloud CDN, which caches content to CDN nodes that are nearest to end users. Dynamic content can be quickly retrieved from origins through dynamic acceleration technologies such as smart routing optimization and protocol optimization.

Comparison between DCDN and CDN

Item CDN DCDN
Supported resource type Static content only. Both static and dynamic content.
Acceleration method Caches static content from origin servers to Alibaba Cloud CDN nodes that are closest to end users.

Uses CDN to accelerate static content delivery.

Uses the dynamic acceleration technologies including smart routing and protocol optimization to retrieve dynamic content from origin servers.

Origin configuration We recommend that you separate dynamic and static content on the origin server and use CDN to accelerate the delivery of static content only. You do not need to modify content on the origin server. DCDN can intelligently identify dynamic and static content and accelerate their delivery separately.

Use DCDN

You can log on to the DCDN console to obtain up-to-date information about console features.

DCDN pricing

DCDN can be billed based on the basic services or the number of requests. Basic services support the pay-by-bandwidth and pay-by-data-transfer billing methods.

For more information about DCDN pricing, see DCDN pricing.