The IP address is whatever the server IP address, it can be your hosted server or another WebControl board, or another device. Even your hosted server has no dedicate IP address, you can still using this feature.
First of all, you need to identify your server's IP address. You can do that by open a DOS windows and ping your server, DOS windows will display the IP address it being resolved. For most hosted server, the port will be 80. For example, if ping your server,
www.mydomin.com, DOS windows displayed IP address 12,23,34,56, then you have the IP address. Please note, mydomain.com is just an example, whatever your domain name, please use that instead. For example, you want to use
www.hit-counter.info as your domain, and you will get its IP address 108.162.196.176
Second, with that information, please enter into the first field:
108.162.196.176:80:www.hit-counter.info
If your server name has no www, you can get rid that www. part. Please note the colon is required to separate each field, there is no space in between.