How can your location be traced Via your IP

Most people wonder how do websites come to know of your location from IP.Now you too can find out.Forget users you can even sneak up on websites. Just enter IP/URL/mailid and vola all the details of are given.This has some great tools that will help you. You can enter IP/URL/Domain name and much more.Above is a pic of what it can do (It gives your location. who is your internet provider, how you