Find information on any domain name or website. Large database of whois information, RDAP, DNS, domain names, name servers, IPs, and tools for searching and monitoring domain names.

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ARIN is a nonprofit, member-based organization that administers IP addresses & ASNs in support of the operation and growth of the Internet.

ARIN’s Whois service is a public resource that allows a user to retrieve information about IP number resources, organizations, POCs, customers, and other entities.

Use the IP WHOIS lookup tool to find the assigned owner, location, and abuse-reporting details of an IP address.

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Background Traditionally, Whois services were offered using the NICNAME/WHOIS protocol as described by RFC 954 and RFC 3912. This protocol is a simple, text-based TCP protocol …

Applies to The type attribute can be used on the following elements:

The ICANN registration data lookup tool gives you the ability to look up the current registration data for domain names and Internet number resources. The tool uses the Registration Data …

Oct 22, 2001 · For these top-level domains, the results of a successful search will contain only technical information about the registered domain name and referral information for the …