The NS (Name Server) records of a domain name point out which DNS servers are authoritative for its zone. Simply, the zone is the collection of all records for the domain, so when you open a URL inside a browser, your laptop or computer asks the DNS servers globally where the domain is hosted and from which servers the DNS records for the domain address must be retrieved. In this way a browser finds out what the A or AAAA record of the domain name is so that the latter is mapped to an IP and the website content is required from the proper location, a mail relay server discovers which server manages the emails for the domain name (MX record) so that a message can be delivered to the appropriate mailbox, etc. Any change of these sub-records is conducted with the help of the company whose name servers are employed, so you can keep the website hosting and change only your email provider for instance. Every domain has at least two NS records - primary and secondary, which start with a prefix like NS or DNS.
NS Records in Shared Website Hosting
When you use a Linux shared website hosting from our us and you include a new domain inside the account or transfer an existing one from another provider, you are going to be able to control its NS records easily using the Hepsia web hosting CP, provided 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 many domain names at a time with several clicks. This is done via the feature-rich Domain Manager tool which is a part of Hepsia and the user-friendly interface is going to make it simple to handle your domain even if it's the first one you've ever registered. It takes merely a mouse click to see what name servers a domain address uses at the moment or if they're the correct ones to forward a domain address to the hosting space on our end and with a few mouse clicks more you are going to even be able to register private name servers for each of the domain addresses that you own. For the latter option you can use the IP addresses of each company that you want the new NS records to forward to.