What is DNS Server (name server)?
Domain name system (DNS) is the system that is used to translate human-memorable domain names like namecheap.com and hostnames like support.namecheap.com into the corresponding numeric Internet Protocol (IP) addresses as well as to identify and locate computer systems and resources on the Internet.
Nameservers are part of a large database called the Domain Name System (DNS), which acts like a directory for devices and the IP addresses attached to them.What nameservers do is use this information to translate domain names into numerical IP addresses – the language our computers understand. This process works so quickly that it’s almost never noticeable. You simply type in a URL, the nameserver lets your browser know where that website is located, and the desired page loads.