The Name Servers of a domain name show the DNS servers that manage its DNS records. The IP of the website (A record), the mail server that deals with the emails for a domain address (MX records), any text record in free form (TXT record), directing (CNAME record) and so forth are extracted from the DNS servers of the website hosting company and for any domain to be using them and to be directed to their hosting platform, it ought to have their name servers, or NS records. If you would like to open an Internet site, for example, and you type in the URL, the browser connects to a DNS server, which keeps the NS records for the domain and the request is then pointed to the DNS servers of the hosting company where the A record of the site is retrieved, enabling you to view the content from the right location. Ordinarily a domain has two name servers that start with NS or DNS as a prefix and the difference between the two is simply visual.