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What Happens When You Type a URL in Your Browser

by Salman Chawhan
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Have you ever wondered what happens behind the scenes when you type a URL into your browser’s address bar? It’s a seemingly simple action, but it sets off a chain of events that ultimately leads to the webpage you want to visit magically appearing on your screen. Let’s unravel this process step by step.

1. Typing the URL:

It all starts when you type the URL (Uniform Resource Locator) into your browser’s address bar. This URL serves as the unique address of the webpage you want to access, whether it’s a news article, a cat video, or an online shopping site.

2. DNS Resolution:

Once you hit enter, your browser needs to find out the IP address associated with the domain name you’ve entered. This process is called DNS (Domain Name System) resolution. Your browser sends a request to a DNS server, which translates the human-readable domain name into a numerical IP address that computers can understand.

3. Initiating a Request:

Armed with the IP address, your browser initiates an HTTP (Hypertext Transfer Protocol) request to the web server hosting the desired webpage. This request includes various headers that provide information about the type of content your browser can accept and other relevant details.

4. Server Processing:

Upon receiving the request, the web server processes it by locating the requested webpage and gathering all the necessary resources, such as HTML, CSS, JavaScript files, images, and more. The server might also interact with databases or other backend systems to dynamically generate content.

5. Data Transmission:

Once the server has assembled the webpage and its associated resources, it sends them back to your browser in the form of an HTTP response. This response includes the requested content along with metadata like status codes, caching directives, and cookies.

6. Rendering the Page:

Armed with the received data, your browser goes to work, parsing the HTML markup, interpreting CSS styles, and executing JavaScript code to render the webpage as you see it. This process involves laying out the content, applying styles, and handling any interactive elements present on the page.

7. Displaying the Page:

Finally, your browser displays the fully rendered webpage on your screen, complete with text, images, videos, forms, and other interactive elements. You can now read articles, watch videos, make purchases, or interact with the webpage as intended by its creators.

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