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DNS (Domain Name System)

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What is DNS?

The Domain Name System ( DNS) is an internet phonebook that converts domain names such as or to the IP addresses needed to load these internet resources into devices.

DNS mechanics can be quite complex because the information is not contained in one single database but instead distributed in a worldwide directory with a wide range of DNS servers.

Fortunately, the average internet user uses no low-level technical information normally. Whenever you go online, your ISP automatically gives you access to a DNS server and when you enter a URL in your browser it will find your IP address.