One tool that can help you find website domain owners is the "WHOIS" lookup. WHOIS is a protocol used to query databases that store information about registered domain names and their owners. It provides contact details, registration dates, and other important information related to a domain.

There are several websites and online services that offer WHOIS lookup functionality. One popular and reliable option is ICANN's official WHOIS website at https://whois.icann.org/. This website allows you to enter a domain name and retrieve information about its owner, registration date, expiration date, and more.

To use the WHOIS lookup on ICANN's website, follow these steps:

1. Visit https://whois.icann.org/ in your web browser.
2. In the search box on the homepage, enter the domain name for which you want to find the owner.
3. Click on the "Lookup" button or press Enter.
4. The website will display the WHOIS information for the entered domain, including the registrant's name, organization (if applicable), address, email, phone number, registration and expiration dates, and more.

For example, if you want to find the owner of the domain "example.com," you would enter "example.com" in the search box on the ICANN WHOIS website. The resulting information will provide details about the domain's owner, such as their name, organization, and contact information.

It's important to note that some domain owners may choose to keep their information private by using domain privacy services or by providing limited contact details. In such cases, you may not be able to retrieve complete ownership information.

Additionally, there are other WHOIS lookup websites and tools available, such as WHOIS.net (https://www.whois.net/) and DomainTools (https://www.domaintools.com/). These platforms offer similar functionality and can provide additional details and historical information about a domain.

Remember to use WHOIS lookup tools responsibly and respect the privacy of domain owners.