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What is an API, and how does it actually work?

Diagram showing two applications communicating through an API gateway

APIs are everywhere in modern software. They connect apps, move data, and automate tasks in the background. Yet many developers first encounter the term and feel uncertain. It sounds abstract. Almost invisible. In this article, we take a grounded look…

  • admin
  • 1월 2, 2026
  • Web Fundamentals

What really happens when you type a URL and press Enter?

Diagram showing a browser sending a request to a server and receiving a web page

When you open a browser, type a web address, and press Enter, a lot happens in the background. It feels instant. But the path from your keyboard to the final page is made of many small steps working together. This…

  • admin
  • 1월 2, 2026
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