Can I geofence my website?

The Geofencing API allow authorized Web applications to define geographic areas and receive notifications when the device enters or leaves these areas without the need to periodically query the Geolocation API .

To make use of geofencing, an administrator or developer must first establish a virtual boundary around a specified location in GPS- or RFID-enabled software . This can be as simple as a circle drawn 100 feet around a location on Google Maps, as specified using APIs when developing a mobile app.

A weird thing is that the geofence triggers only work when Google maps is running, on any app on device.