If you want to know the IP address of your website you can find out by conducting a PING test.
1. In windows click on "start" select "run..." and type in "cmd.exe" in the dialogue box and hit enter.
2. This will open up a dialogue box, at the prompt type "ping www.yourdomain.com" *replace your domain.com with the domain you want to query. The response will indicate the IP address of your website.
If you are using Mac OS, you can follow step 2 after opening up your terminal application.