What is WHOIS?

15 Minute Series What is WHOIS?

The information found in the InterNIC and DDN NIC's WHOIS directories includes: domain names and IP addresses, contact names, company names, postal and electronic mail addresses, phone numbers, etc.

WHOIS is used :

to find information about networks, domains, and hosts
to locate contact information (people) for networks and domains
when registering a domain name, to see if the name is already in use

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