Ever wondered how the internet actually works behind the scenes? In this video, I break down the most important network protocols that power everything online: IP, TCP, UDP, DNS, HTTP, HTTPS, MQTT, and WebSocket so you can finally understand how data moves across the internet.
We start with IP, the foundation of the internet, and how it routes packets between devices. Then we explore TCP and UDP, two core transport protocols with completely different design philosophies reliability vs speed. From there, we dive into DNS, the system that translates domain names into IP addresses in milliseconds.
You’ll also learn how HTTP and HTTPS enable web browsing, how encryption with TLS keeps your data secure, and why modern updates like HTTP/2 and HTTP/3 matter. On top of that, I cover MQTT, the lightweight protocol behind IoT devices, and WebSocket, the technology that makes real-time apps like chat and live data possible.
If you want to truly understand how the internet works from the ground up, this video gives you a complete and practical overview in just 12 minutes.
How IP addresses and packet routing work The difference between TCP and UDP How DNS resolves domain names How HTTP and HTTPS power the web Why encryption (TLS) is critical for security How MQTT enables IoT communication How WebSocket allows real-time data exchange
