CDN (Content Delivery Network) is a distributed network architecture designed to provide efficient content distribution and delivery services. It is a technology that improves Internet performance and user experience, especially for large-scale websites, applications and media content providers.
The basic principle of CDN is that by deploying multiple server nodes globally, content is cached to the node closest to the user, and when the user requests access to the content, the CDN intelligently selects the node closest to the user to provide the content, thus realizing fast and efficient content delivery. This distributed architecture effectively solves the common network congestion and latency problems in the Internet.

The main features and advantages of CDN include:
1. Accelerated Content Delivery: CDN significantly reduces the distance and network latency of data transmission by caching content on servers closer to the user, thus realizing faster content loading speed and improving user experience.
2. Load balancing: CDN can intelligently distribute user requests to multiple server nodes to achieve load balancing and avoid performance degradation caused by overloading a single server.
3. Improve stability: CDN has highly reliable server nodes, if a node fails, other nodes can still provide content to ensure the stable transmission of content.
4. Reduce costs: Through the distributed architecture of CDN, the burden on a single data center can be reduced, thus reducing bandwidth and server costs.
5. Improve global access: CDN’s server nodes are located all over the world, which can better respond to the access needs of global users and provide more stable and efficient services.
6. Improved security: Some CDN providers offer security features, such as DDoS attack protection and SSL encryption, to protect content and users.
CDN plays an important role in the modern Internet. Many large websites, video streaming platforms, e-commerce sites, etc. use CDN technology to provide faster and high-quality content delivery services. By caching content on nodes closer to users, CDNs can significantly improve the access speed of users, while reducing the load on servers and guaranteeing reliable content delivery. Therefore, CDN has become one of the most important means to improve website performance and user experience. If you have related needs, welcome to contact Ogcloud.

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