What Is a Domain Name System?
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A Domain Name System (DNS) is the phonebook of the internet. It is a system that translates a domain name (like example.com) into an IP address which computers and other devices use to communicate with each other. DNS works by storing records in a distributed database on servers all around the world. These records are used to look up information about a domain, such as its current IP address, mail server IP addresses, and other related information. When a computer or device needs to access a website, the browser or application requests information from the DNS servers and it provides the requested data.