Understand the simple request-and-response cycle behind websites.
14 minute lesson with 3 sections, 3 exercises, 2 checkpoint questions, and 1 homework submission.
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When you visit a site, your browser sends a request. A server receives that request and sends back files such as HTML, CSS, images, or data.
Your browser then assembles those pieces into the page you see on screen.
The browser asks, the server answers, and the page appears.
A URL is the address that tells the browser where to go. Different URLs can point to different pages, images, or files.
Understanding that address structure helps beginners make sense of navigation and routing later.
A homepage URL and an article URL often share the same domain but different paths.
Browsers read HTML to structure content, CSS to style it, and JavaScript to add interaction. You can think of them as translators between web files and human-friendly pages.
That is why frontend languages matter so much when building websites.
HTML, CSS, and JavaScript work together in the browser to create what users see.
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