A WHOIS search will provide details regarding a domain name. It may include information, such as domain ownership, where and when registered, expiration date, and the nameservers assigned to the domain.
For instance, let's search for our domain name website.com.bn:Note: If a registrant opts to setup WHOIS privacy, you will not be able to see the contact information. There are also registries for certain domain extensions who have opted out WHOIS, therefore the records cannot be viewed.