|A domain name is simply a string of alphabets and numbers that identify a particular website. For example, you can try 'com'. Domain names are only unique to websites. Any webmaster can register a domain name and make it available for anyone to register. The first step towards getting a domain name is to find an appropriate name from an available list.|
Nameserver lookup or DNS lookup is just a tool for accessing name server records of a domain name. DNS is just a computer tool, it's not a human, so it cannot mistakes. So, sometimes it gets difficult to lookup names. Suppose you try to find some useful information about domain names but you cannot get any information. Well, sometimes, the computer hardware of your computer doesn't know anything about domain names and IP addresses. So, when you try to perform a DNS look-up, you will not get any data at all.
Nameserver Lookup or DNS Lookup works only if you can enter the domain name into the query box of DNS server. Nowadays almost every major internet service provider (ISP) runs domain name system( DNS ) on their network. Whenever you connect to any website, you will see the results shown in form of a response from DNS server. Nameserver is nothing but a computer program that works as a database for DNS. It keeps record of various DNS servers and their reply IP addresses.
If you will try to perform a DNS look up without dns, you will get error message like "You need to insert the nameserver address in order to access the domain name." What actually happens is that your computer tries to query the DNS server without knowing its IP addresses. In this case, it will return the response with IP addresses that you do not know. The reason behind this is that in most cases, people write down the domain name and write it down in a paper before accessing it through internet. And then they forget their IP addresses later. But, if you try to do a DNS look up without dns then it may give you some information but you have to be sure about the accuracy.
Most of the times people are confused about the difference between name server lookup and nameserver lookup. In fact, both of them are same but they look different from each other. Basically, a name server is responsible to provide you with the IP addresses of the domain name that you typed in. And, nameserver lookup helps you to know which of the nameservers are associated with particular domain name and whether they are functioning properly or not. If you try to do a DNS look up without typing any domain name in, then it will take you a little more time because you need to browse all the nameservers associated to find out whether they are responding or not.
On the other hand, with nameserver lookup you can easily know which of the nameservers are associated with a particular domain name and whether they are responding or not. Also, with this you will get to know the names of the IPs that are associated with particular domain names. It also allows you to make out the nature of the servers that are providing the nameserver records. So, as you can see both types of dns records are very necessary for your website.
Nameservers are used to store the data about domain name that you provide and this data is then referenced by various DNS servers around the world. The main purpose of DNS is to give internet users the address of a domain that they can use to reach your website. However, there are certain situations where the domain can become misassociated with other nameservers. In these situations, the main domain becomes the DNS's main zone while the secondary domain becomes the secondary zone. So, if you are trying to reach a particular domain through your ISP, you will be redirected to the main domain and if you are using a different ISP, your query will be directed to the secondary domain.
As you may have noticed, when an IP address is associated with domain name, the addresses are associated for the most part. However, some circumstances make it so that two or more IP addresses may share the same domain. These situations can be for example when the domain is linked to a phone book directory or a free address directory. In these cases, all the recorded information will be listed under one domain name rather than the multiple names. So, as you can see, both types of dns are needed for a website and for that purposes you can consider either option.