This tool allows you to look up contact and owner information for a particular IP or domain. It looks up information using the WHOIS protocol.
Various WHOIS servers are maintained by top-level domain owners (such as
.com) and by various domain registrars. This online tool connects to the appropriate WHOIS server to retrieve details.
There are some top-level domains which make this information available via proprietary methods (such as a web page on their site) instead of providing it through the WHOIS protocol. In such cases, this tool will tell you how to get this information.
You can also use this tool to find out if a domain name is available. A domain name that hasn't been registered by anyone will appear as "not found" in the WHOIS details.