whois
The whois command looks up the registration record associated with a domain name. This can show you more information about who registered and owns a domain name, including their contact information.
This command isn’t included with Windows itself, but Microsoft’s Windows Sysinternals provides a Whois tool you can download.
This information is also available from many websites that can perform whois lookups for you.
Reference: http://www.howtogeek.com/190148/8-common-network-utilities-explained/