The Whois tool is a powerful means to access Internet registries and obtain detailed information about a host, domain name, or IP address.
Registries queried by Whois contain a variety of information, such as the creation date of a domain name, the name of its owner, and many other relevant details.
It is important to note that information provided by the Whois tool should be interpreted with caution. It may be outdated or intentionally censored by domain owners for privacy reasons.
The main limitation of the Whois tool lies in the lack of international standardization. Consequently, data formats returned by different registries may differ, making the consolidation of results sometimes complex.
Some registries are more comprehensive than others, disclosing more information, while others may limit the amount of accessible data.
The Whois tool emerged with the development of the Internet to enable users to obtain details about registered entities. Over time, it has become an essential tool for cybersecurity professionals, system administrators, and researchers.