This course explains how data travels from the transport layer (TCP) up to the application layer (HTTP), giving learners a clear understanding of how the web actually works. It is designed for beginners and aspiring developers who want to understand what happens behind every website request.

The course starts with TCP fundamentals, explaining how reliable communication is established between client and server. You will learn how TCP handles connection setup, data transmission, and reliability through mechanisms like sequencing and acknowledgments.

It then transitions into how application protocols are built on top of TCP, focusing on HTTP. You will understand how web browsers communicate with servers, how requests and responses are structured, and what happens when you load a website.

The course bridges the gap between networking and web development by showing how lower-level networking concepts directly support modern applications like websites, APIs, and cloud services.

By the end of this course, you will have a clear mental model of how data flows from raw network communication to usable web content, making it easier to understand backend systems, APIs, and distributed applications.

This course is especially useful for developers, IT students, and anyone who wants to understand the real mechanics behind the internet.