[Feature Request] Include domain whois data

[l0ss]

Pls add domain whois data including:

• Registrant
• Registrar Name
• Last Modified
• ... and anything else you think might be useful.

[kronicd]

Would it perform whois against the domain portion of every fqdn provided (eg, example.com for an input of test.example.com) or just for inputs which are a "domain" (eg, example.com)?