What is Azure CDN?

Azure Content Delivery Network (CDN) is a distributed network of servers that delivers web content (static files, videos, large downloads) to users from the nearest geographic location, reducing latency and improving performance. When a user requests content, the CDN serves it from the nearest Point of Presence (PoP) rather than the origin server. Benefits: Reduced latency, reduced origin server load, increased availability (CDN cache serves content even if origin is down). Azure CDN integrates with Azure Blob Storage, Web Apps, and Media Services as origin. It supports custom domains, HTTPS, caching rules, and compression. For more advanced features like WAF, rate limiting, and intelligent routing, use Azure Front Door.