What is Azure Front Door?
Answer
Azure Front Door is a global, scalable entry point for fast delivery of web applications. It combines CDN, load balancing, WAF, and global HTTP routing in a single service. Key features: Global load balancing: routes traffic to the nearest healthy backend across regions using anycast networking and latency-based routing. SSL offload: terminates SSL at the edge, reducing backend load. Web Application Firewall (WAF): protects against OWASP Top 10 vulnerabilities at the edge. URL-based routing: route /api/* to a different backend than /static/*. Session affinity: sticky sessions. Caching: cache responses at edge nodes. DDoS protection: automatic at the network layer. Azure Front Door Standard/Premium replaced Classic Front Door and unified it with Azure CDN profiles.