Server info

Hi. I'm a italian engeneer student. I kindly ask you to help me in my study.- I am interested to create a program java that does that is more or les the same job of WHOIS datum an URL it for instance extract me the info on the site origin, address IP, the owner's name etc.
I in advance thank all those people who will help me.
Talk to you soon

Is there a website that you can send a query to that will return the data you are looking for?

Actually whois.net, alexa do the same. But I'm not sure they provide the hosted IP.