WHOIS is a query and response protocol used to obtain information about the ownership of a domain name or an IP address. It allows users to find details such as:
Domain Registrant: The person or organization that registered the domain.
Contact Information: Email addresses, phone numbers, and mailing addresses of the registrant.
Domain Status: Information about the registration status, expiration date, and name servers.
Registrar Information: The company that manages the domain registration.
To perform a WHOIS lookup, you can use various online WHOIS services or command-line tools. Keep in mind that due to privacy regulations (like GDPR), some registrant information may be redacted or unavailable.