One of the major tools used by cybersecurity professionals is the WHOIS query. The query enables retrieval of information about a given domain – where it was registered, when it was registered, when it expires, what its name servers are, and more. This information can be crucial for brand protection, law enforcement investigations, and more. WHOIS queries can also be performed on IP addresses, revealing the web hosting company that owns the IP address.| IntelFinder
The Registration Data Access Protocol (RDAP) is the successor to WHOIS, which is being sunsetted on 28 January 2025.| www.icann.org