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Science & TechHow it works

How your browser finds wikipedia.org.

Computers reach each other by numbers, the IP addresses. When you type a name, your device asks a DNS server, which acts like a phone book and returns the matching address. The lookup runs in stages: from the .org ending to the domain to the specific server. It usually takes milliseconds and gets cached.

Useful: If a page won't load even though the network works, DNS is often the culprit: try another server.

Source: en.wikipedia.org

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