How a Website Loads: DNS Lookup, Server Requests, and Browser Rendering

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Every time a user types a web address and hits Enter, a multi-step process begins invisibly in the background. The browser first uses the Domain Name System (DNS) to translate the human-readable domain name into a machine-readable IP address, similar to how a phone contact list maps names to numbers. It then sends a request to the website's server, which processes the query and returns files including HTML, CSS, JavaScript, and images. The browser uses HTML to build the page structure, CSS to apply visual styling, and JavaScript to enable interactivity. This entire sequence — from DNS resolution to fully rendered webpage — is completed in a matter of milliseconds.

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