Using the NetTools whois client, you can search for
- Domains - information about domains and their owners (domain registration and expiration dates, information about nameservers, etc.) in the databases of the domain registries. The list of searchable TLDs can be found in the help section.
- IP addresses - information about IPv4 and IPv6 addresses (where is address block located in and to which organization has been the IP block assigned).
- Autonomous systems - information about autonomous systems (which organization operates this autonomous system, how it is connected to other autonomous systems, etc.).
- Information about hosts in the internet - IP address, link to domain information, and whether it is a CNAME of another host.
- Information about other objects in whois databases - identifiers of persons or organizations, etc.