What happens in a computer when a person enters a URL and lands on a page?
sobes.tech AI
Answer from AI
When a person enters a URL in the browser and presses Enter, several steps occur:
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URL Parsing: The browser extracts the protocol (e.g., https), domain name, and path.
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DNS Query: The browser contacts the DNS server to obtain the IP address of the server by the domain name.
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Establishing Connection: If the protocol is HTTPS, a TLS session (SSL handshake) is established for a secure connection.
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Sending HTTP Request: The browser sends an HTTP GET request to the server using the obtained IP and the required path.
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Server Processing: The server receives the request, processes it (e.g., calls backend or serves a static file).
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Server Response: The server returns an HTTP response with a status code, headers, and body (HTML, JSON, images, etc.).
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Page Rendering: The browser receives the HTML, parses it, loads additional resources (CSS, JS, images), executes scripts, and displays the page to the user.
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Additional Requests: If the page contains dynamic content, the browser may make additional AJAX requests.
This process occurs very quickly and ensures the display of the desired web page.