How a Request Travels from Client to Server

my thought process for request travels from the client to server is

We use the internet every day — scrolling, clicking, searching — but we rarely think about what actually happens behind that one simple action. Let’s say you type google.com or click a button on a website. That small action silently starts a full journey across the internet.

It all begins with your device, also called the client. The moment you enter a URL, your system doesn’t immediately know where to go. Computers don’t understand domain names — they understand IP addresses. So your device reaches out to DNS (Domain Name System) to translate that human-readable name into an IP address. You can think of DNS like a contact list — it converts names into numbers.

Once the IP address is found, your browser prepares an HTTP request. This request includes things like the method (GET, POST), headers, and some metadata describing what you're asking for. Before sending it, the request goes through the TCP/IP protocol stack, where a connection is established using the TCP three-way handshake to make sure communication is reliable.

Now the interesting part — the request is broken into smaller pieces called packets. These packets travel across multiple networks, routers, and systems using IP routing. Each router along the way decides the best path for the packets, similar to how maps choose the fastest route.

these packets reach the server. The server reassembles them, understands the request, and processes it. This may involve fetching data from a database, running backend logic, or simply returning a static webpage.Once the processing is done, the server sends back an HTTP response — again in packets. These packets travel all the way back to your device, where they are reassembled, and your browser finally renders the content on your screen.