Upasana Singh on Instagram: "Every URL starts the same. Only localhost takes a shortcut. When you type any URL, the browser always asks the OS: 👉 “What’s the IP address?” For normal websites → DNS → internet 🌍 For localhost → hosts file → loopback 🔁 Same process. Different path. That’s why localhost works without Wi-Fi. It never leaves your machine. Networking still happens — just internally. Save this. Most freshers get this wrong. #localhost #networking #webdevelopment #backendengineering #

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