Design a Global Content Distribution Network

Architect a content distribution network (CDN) that delivers web content and services to users based on their geographic location, the origin of the content, and the content delivery server. The network should optimize for speed, reliability, and security, effectively handling peak traffic loads and protecting against cyber threats. Key components include a distributed network of edge servers, caching strategies, load balancing, and robust security measures. The CDN must ensure fast content delivery, reduce bandwidth costs, and improve user experience across global locations.