The NS (Name Server) records of a domain show which DNS servers are authoritative for its zone. Basically, the zone is the selection of all records for the domain, so when you open a URL inside an Internet browser, your computer asks the DNS servers globally where the domain address is hosted and from which servers the DNS records for the domain ought to be retrieved. With this a browser finds out what the A or AAAA record of the domain is so that the latter is mapped to an IP and the website content is requested from the right location, a mail relay server discovers which server handles the emails for the domain (MX record) to ensure that a message can be forwarded to the needed mailbox, etc. Any change of these sub-records is performed through the company whose name servers are used, so that you can keep the web hosting and change only your email provider for instance. Each domain name has a minimum of 2 NS records - primary and secondary, which start with a prefix such as NS or DNS.
NS Records in Cloud Web Hosting
If you use a cloud web hosting from our us and you register a new domain in the account or transfer an existing one from another company, you are going to be able to control its NS records effortlessly through the Hepsia hosting CP, offered with all shared accounts. You are able to change the current name servers or enter additional ones for a single domain address or even for a number of domain addresses at once with several mouse clicks. This is done via the feature-rich Domain Manager tool that is a part of Hepsia and the user-friendly interface will make it easy to manage your domain name even if it is the first you have ever registered. It requires just a click to see what name servers a domain name uses at the moment or if they're the correct ones to point a domain name to the hosting space on our end and with a few clicks more you will even be able to register private name servers for each of the domains that you own. For the latter option you can use the IPs of each and every provider that you want the new NS records to forward to.