3. Operational Mechanism of Static CDN Acceleration

3. FAQ-CDN Static Acceleration
The operational mechanism of CDN static acceleration is based on a globally distributed server network designed specifically to optimize and accelerate the delivery of a website's static content. This static content includes images, videos, CSS, and JavaScript files, which are typically not frequently modified. Below, we will gradually explain the specific workflow and key technologies of CDN static acceleration.

Construction of Content Delivery Network (CDN)

A CDN comprises multiple nodes distributed across the globe. These nodes store copies of the website's static content, allowing the content to be geographically closer to end-users. When a user accesses the website, the CDN automatically redirects the request to the nearest node, reducing data transmission distance and time.

Caching Strategy

Caching is a critical aspect of CDN static acceleration. CDN nodes cache the website's static content, including images, CSS files, and JavaScript. Once cached, subsequent user requests can be quickly responded to by the node without the need to load from the origin server every time, significantly improving loading speeds.

Intelligent Routing Optimization

CDNs utilize advanced routing technologies to ensure requests are handled in the most efficient manner. By analyzing network conditions in real-time, CDNs can select the fastest path to deliver content to users. This not only improves response times but also enhances connection stability.

Load Balancing

During periods of high traffic, CDNs can perform load balancing by distributing user requests across multiple nodes, preventing any single node from becoming overloaded. This mechanism ensures that even under heavy traffic conditions, the website's performance remains unaffected.

Automatic Updates & Maintenance

CDN nodes regularly check and update cached content based on predefined rules, ensuring that all cached data is up to date. When original content changes occur, CDNs automatically refresh their caches to reflect these changes.

Enhanced Security

In addition to accelerating the transmission of static content, CDNs also provide security features such as DDoS attack protection and data encryption, further safeguarding websites against various network threats.


In summary, CDN static acceleration effectively enhances website loading speeds and overall performance through distributed storage and intelligent routing. This not only improves user experience but also strengthens the reliability and security of websites.