What Happens When You Type a URL and Press Enter?

Ever wondered how a website loads so quickly when you type www.pwioi.club and hit Enter? ??

Let's break it down step by step! ??

?? Step 1: Browser Needs to Connect

Your browser wants to load www.pwioi.club, but first, it needs to find where this website is hosted.

?? Problem: The browser understands IP addresses, not domain names. ?? Solution: It asks the DNS (Domain Name System) to get the IP address.

?? Step 2: DNS Finds the IP Address

Since www.pwioi.club is just a name, the browser asks a DNS server:

?? Browser: "Hey DNS, what’s the IP address of www.pwioi.club?" ?? DNS: "It’s 192.168.1.1!"

Now, the browser knows where to send the request!

?? Step 3: Browser Connects to the Server

Armed with the IP address 192.168.1.1, your browser knocks on the server’s door.

?? Connection established! But wait… the server hosts many websites. How does it know which one to load? ??

?? Step 4: HTTP Request Tells the Server What You Want

Even though the browser connects via IP, it also sends an HTTP request specifying the domain name.

?? Example Request:

GET / HTTP/1.1 
Host: www.pwioi.club        

?? The Host header in the request tells the server: "Hey, I need resources for www.pwioi.club!"

?? Step 5: Server Sends Back the Website

Now that the server knows which website you requested, it sends back:

? HTML (structure)

? CSS (styles)

? JavaScript (interactivity)

? Images & other resources

Your browser renders the content, and BOOM ??— www.pwioi.club appears on your screen!

?? Quick Recap:

1?? You type www.pwioi.club & hit Enter.

2?? DNS translates it to an IP address.

3?? Browser connects to the server.

4?? Browser sends an HTTP request with the domain name.

5?? Server sends back the website content → Page loads! ??

Hope this helped! ?? Drop a ?? or a comment if you found this useful!

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