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Who.is
http://who.is/
Redirects to: https://who.is:443/
alive
HTTP 200
Last checked: 2026-03-02T21:40
Description
Who.is is a domain name and IP lookup tool that allows users to search WHOIS and RDAP databases to retrieve comprehensive registration information, contact details, nameservers, and DNS records for any domain name or IP address. The site provides access to both traditional WHOIS protocol data and the modern RDAP (Registration Data Access Protocol) alternative, along with domain availability checking and historical data.