Tool Description: Whois Tool

Overview:
The Whois tool is a tool used to query domain name information. Users can enter a domain name or URL address, and the tool will automatically query and return relevant information such as registration information, registrar, and registrant for that domain name.

Function Description:
1. Users can enter a domain name or URL address for query.
2. The tool will automatically detect the input address and format it.
3. The tool will query and return relevant information such as registration information, registrar, and registrant for that domain name.
4. The tool will display the query results in a table format on the page.

Use Cases:
1. Domain name registration: When registering a domain name, users can use the Whois tool to query the registration information of the domain name to better understand the situation of the domain name.
2. Domain name trading: When conducting domain name trading, users can use the Whois tool to query the registration information of the domain name to better understand the value and risks of the domain name.
3. Domain name management: When managing their own domain names, users can use the Whois tool to query the registration information of the domain name to better understand the status and renewal time of the domain name.
4. Domain name monitoring: When monitoring the domain names of competitors, users can use the Whois tool to query the registration information of the domain name to better understand the situation of the competitors.