Using a CDN (Content Delivery Network) can bring many benefits, especially for websites with international users. Here are some possible benefits:

　　Improve access speed: CDN significantly improves the loading speed of the website by caching the website's static resources (such as images, style sheets, scripts) to globally distributed server nodes, allowing users to load content from nodes closer to them.

　　Global coverage: High-defense CDN services usually have distributed nodes around the world, covering multiple countries and regions. This means users can quickly access your website no matter where they are in the world.

　　Reduce the pressure on the origin server: CDN can reduce the burden on the origin server because it is responsible for processing a large number of static resource requests, thereby releasing the resources of the origin server and focusing more on dynamic content and business logic.

　　Improve website security: High-defense CDN usually has security features, such as DDoS protection, Web Application Firewall (WAF), etc., to help resist various network attacks and protect your website from malicious traffic.

　　Load balancing: CDN can distribute traffic among multiple nodes to achieve load balancing. This helps ensure that all users have a stable and efficient access experience without the service being unavailable due to the failure of a node.

　　Improved user experience: Since the content of the website can load faster, the user experience is improved. Web pages that load quickly often increase user retention and satisfaction.

　　Reduce bandwidth costs: CDN can reduce the amount of data transmitted through caching and compression, thereby reducing bandwidth costs. This is especially important for high-traffic websites.

　　Dynamic content acceleration: Some advanced CDN services support dynamic content acceleration, which not only accelerates the loading of static resources, but also optimizes the transmission of dynamically generated content.

　　Real-time statistics and analysis: CDN provides real-time traffic statistics and analysis tools, allowing you to understand visitor behavior, traffic sources and other information, which helps optimize the website and content.

　　Overall, using high-defense CDN is an effective means to improve website performance, security and user experience, especially for websites with global users. When choosing a CDN service provider, it is recommended to consider the service's global coverage, security, performance optimization features, and how well it matches your website's needs.