How do flight tracking websites work?

Flight tracking websites may seem like something magical because they are able to turn the sky’s traffic into a live map, but they are really nothing more than a collection of radio signals that have been stitched together in a way that any ordinary person can understand. These websites have helped millions of people take a look at flight information daily while also providing insight into how geopolitics can sometimes affect travel. But how, exactly, does flight tracking work? Click on to find out.