This is a small web tool which helps you find an IP-Address geographical location. It works perfectly with both IPv4 and IPv6 addresses. All you need is just to enter IP-address in a search form on the top of this page and press lookup button to get information.
If you just simply visited this website, then, by default, it recognizes IP-address of your computer and tries to determine your possible geographical location. By the way, if you want to share this page displaying a location of some predefined IP, you can put this IP after the hash sign in the URL, for example: http://whereisip.org/#126.96.36.199
If you are looking for more info about your Internet connection you can visit useful website which gives a quick answer on yours what is my ip question. There are plenty network tools which helps diagnose your current Internet connection.