how a request originates from client and reaches server

How a Request Travels from Client to Server Every time you open a website, send a message, or watch a video online, something fascinating happens behind the scenes. A simple action—like typing a URL—sets off a chain reaction across the internet. But how exactly does your request travel from your device (the client) to a server somewhere in the world? Step 1: You Make a Request It all starts with you. You open your browser and type something like: www.wikipedia.org. At this moment, your device (phone, laptop, etc.) becomes the client , and it’s asking: “Hey, can I see this website?” Step 2: The Browser Checks Cache Before going out to the internet, your browser does a quick check: “Do I already have this data saved?” If yes, it loads instantly. If not, it proceeds to the next step. This saves time and reduces unnecessary network traffic. Step 3: DNS — Finding the Server’s Address Humans use names like wikipedia.org , but computers need numbers. So your system contacts a DNS (Domain Name