CliffCloud (about)

The location features on CliffCloud are dependent on the Geolocation API so it won’t always be spot-on. Some phones preform better than others. And it won’t ever be perfect.

The W3C Geolocation API is an effort by the World Wide Web Consortium (W3C) to standardize a interface to retrieve the geographical location information for a client-side device. It defines a set of objects ECMAScript standard compliant, that executing in the client application give the client’s device location through the consultin of Location Information Servers, which are transparent for the application programming interface (API). The most common sources o location information are IP address, Wi-Fi and Bluetooth MAC address, radio-frequency identification (RFID), Wi-Fi connection location or device Global Positioning System (GPS) and GSM/CDMA cell IDs. The location is returned with a given accuracy depending on the best location information source available > Excerpt from the Wikipedia Article

If reading the documentation for it isn’t your thing, the gist of it is, while it’s a good starting point, it’ll only report the best informatio it can get. Use your judgement and any other resources you have at hand

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