The domain owner's information is often hidden due to privacy protection (Whois Privacy Protection). This feature is enabled by the domain owner to prevent their personal information from being publicly available. When Whois privacy is activated, the domain owner's name, email, phone number, and address become anonymous.

If the Whois information is not hidden, you can directly contact the domain owner via the provided email address or phone number. If the information is hidden, you may need to contact the domain registrar, as they can relay messages to the domain owner.

After a domain expires, it goes through certain periods like "grace period", "redemption period", and "pending delete." These phases provide the domain owner with an opportunity to renew the domain. During this time, the domain is not available for general registration and can last for 30-90 days.

Whois privacy is a service that prevents personal information about the domain owner from being publicly visible. Supported by ICANN, this service is offered by domain registrars. Users can activate this service when they want to keep their domain registration details private. This ensures that sensitive information about the domain owner is not easily accessible.