Information about domain name or website. Here is database of whois information, DNS, domain names, name servers, IPs.
"WHOIS (pronounced as the phrase who is) is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information. The protocol stores and delivers database content in a human-readable format. The WHOIS protocol is documented in RFC 3912". (Wikipedia)
WhoIs supports more Top Level Domains (TLDs) than any other WHOIS service. In addition to the popular Generic TLDs like .COM, .NET, .ORG, etc., we also support hundreds of Country Code TLDs (ccTLDs). We offer a basic DNS check for those registries which don't provide standard WHOIS access and our site is IDN friendly, making it easy to find available domains in other languages.