Domains are registered with customer information and that data is available publicly unless protected through privacy protection or registry choosing to hide this data.

Easyhost provides a way for you to check Whois information for domain names (please note registry hides registrant details by default for .PK domains and hence in not available publicly).

Check domain whois here

Whois information will also provide the nameservers set for domain name and the IP address it is pointing to (server at the backend).