Skyhook Wireless was the first to use WiFi hotspots (wireless access points) to determine the location of a cell phone, its WPS (WiFi positioning system) use data (MAC address, GPS coordinates) of the wireless access point surveyed by its drivers to track phone locations.
This WiFi tracker uses the wireless router MAC address to determine the location of cell phone and hotspots and laptops. Each WiFi hotspots covers a certain area, the more Access points in your area, the more accurate result it will return. So the density of wireless access points will determine the accuracy. But this Wi-Fi tracker is intended for single MAC address query only.
This WiFi tracker sends query to Google location server, and returns the location. If the MAC address of your wireless router is not included in their databases, no results will be returned and the default map will load, which means you are not exposed to Google.
Google previously used its street view cars to collect the MAC address of Wi-Fi hotspots, later it stopped the operation forced by world governments for violation of privacy laws. Now Google use peoples' cell phones which installs Google Maps to collect such data. So many MAC address query may not return any results.
We are not responsible for any tracking errors. You can get in touch with us via the about page, feedback are welcome.