Global Entry Point

Azure Front Door is a scalable and secure entry point for the fast delivery of your global web applications.

1. Anycast Network

Front Door uses Microsoft's global 'Anycast' network. When a user visits your app, they hit the nearest Microsoft 'Edge' location. Their request then travels over Microsoft's high-speed private fiber optic cables directly to your .NET backend, bypassing the slow and congested public internet.

2. WAF & DDoS Protection

Front Door comes with built-in **Web Application Firewall (WAF)** and DDoS protection. It can block malicious requests (SQLi, XSS) right at the edge, before they ever reach your web server. It also handles SSL termination and URL redirection globally.

3. Architect Insight

Q: "ALB vs Front Door: Which one do I need?"

Architect Answer: "Use **Application Gateway (ALB)** if your app is hosted in a single region and you need complex path-based routing within a VNet. Use **Front Door** if your app has a global audience or you need a best-in-class CDN to accelerate your static and dynamic content. For the ultimate enterprise setup, you can even use both: Front Door as the global entrance and Application Gateway as the regional gatekeeper."