A geographically distributed network of servers that cache and deliver web content to users from locations closest to them, significantly improving website performance and reducing load times. CDNs store copies of static content like images, videos, CSS files, and JavaScript across multiple edge servers worldwide.

Performance Optimization

CDNs reduce latency by serving content from edge servers located near end users, minimizing the physical distance data must travel. This geographic proximity, combined with advanced caching strategies, can reduce page load times by 50% or more, particularly for users located far from the origin server.

Additional CDN Services

Modern CDNs offer additional services beyond content caching, including DDoS protection, SSL certificate management, image optimization, and real-time analytics. They also provide origin shielding to reduce load on source servers and support dynamic content acceleration through route optimization and connection pooling.