An Introduction to Content Delivery Networks (CDN) and Global Server Load Balancing (GSLB)
This article explains the fundamentals of Content Delivery Networks (CDN), their architecture, key functions, and principles, and then details Global Server Load Balancing (GSLB) techniques—including DNS‑based, HTTP‑redirect, and IP‑spoofing methods—along with server‑selection strategies and their advantages and drawbacks.