CDN and HTTP Caching

CDN (Content Delivery Network)

What is CDN?

CDN allows CDN providers to deliver content that doesn't change frequently from servers to users.

How it Works

1. User makes a request to the server
2. DNS server redirects to CDN provider's server
3. CDN delivers cached content from the nearest server to the user

Benefits

• Faster delivery: Content served from geographically closer servers
• Reduced server load: Main server doesn't handle all requests
• Better performance: Cached content is served quickly

---

HTTP Caching

Effective caching strategies can significantly improve website performance.

Reference

• Google Web Fundamentals - HTTP Caching

---

Originally published at https://dss99911.github.io