Today we are starting a new series called Website hacking. We will discuss everything from the basic, Like How a website is hacked, types of attacks,  first step to hack a website and at the end how to stay safe from these attacks. Because at the end as an ethical hacker you are learning hacking to protect your self and others from being hacked.

Now to hack anything the first is footprinting, I already discussed what is footprinting and types of footprinting. There are soo many ways to obtain information about a particular website and whois lookup is one of them, As I said we will go through the basic. 

What is Whois Lookup?

Whois is a query and response protocol used for querying the database for internet resources such as domain name, IP address block, etc. Whois lookup uses TCP 43 protocol listen to the request. Regional Internet Registries (RIRs) maintain the whois database, Which contains the personal information, text record, Domain expiry data, Hosting details, Domain IP, Domain Create Data, Information about the owner, etc 

Different Technique TO Perform Whois Lookup.

Whois Domain Lookup

whois.domaintools.com is a very famous website help to perform Whois lookup just by entering the IP address or domain name. Whois Domain can give you very important information like Registrar. Hosting details, Location, History, Changes in the domain and name server, etc.


Whois lookup Through Terminal

Kali Linux is a very popular operating system for pentester. To perform Whois lookup open your terminal in your Kali Linux and type the whois following with IP address or domain name like  
"whois google.com" 

NSlookup

 Nslookup means name server lookup. Nslookup is a command line tool used by the network administrator for querying the DNS (Domain Name Server) to know about IP address and domain mapping or other DNS records. Nslookup is by default available in all the operating system and can be used through cmd or terminal according to your OS. If you want to know about any domain DNS type the "nslookup google.com " in your terminal or command prompt in windows.


As a hacker, you should try to find more information from different tools and website to find more information about the website, Because as much as information you gather it will help you to hack it.
if you type Whois in google search there are soo many other websites available.