If you want to find the IP address or name servers of a website to gain further information on the behind the scenes and hosting here is an easy and simple way.

Go to whatsmydns.net put in the website you want to see the IP address and make sure A is selected for IP address or NS for name servers. Then hit search and you will see down the list countries/locations and what IP or Name servers get resolved at that location for the website or url.

This is also a good tool to check if your domain has propagated across to your dns.