CDN Architecture Comprehensive guide to Content Delivery Network architecture - caching, distribution, and edge optimization patterns. When to Use This Skill - Designing CDN strategies for web applications - Implementing cache hierarchies - Optimizing origin load and performance - Understanding cache invalidation patterns - Selecting CDN providers and features - Configuring edge caching rules CDN Fundamentals How CDNs Work CDN Architecture Cache Hit/Miss Flow Caching Strategies Cache-Control Headers Caching Decision Matrix Vary Header Origin Shielding Shield Architecture Request Collapsing Ca…