Domain Name System – What is it?
The Domain Name System, or shortly DNS, is a decentralized system with a strictly established hierarchical composition for identifying devices and services on the Internet and private networks. It is one of the most important pieces of the Internet and serves for it to provide the best experience as it is nowadays.
Thanks to it, the queries for a specific domain name, such as example.com, are directed to all name servers on different levels. Each level gives a piece of information for the location of the domain name.