wigle.net - WiGLE (Wireless Geographic Logging Engine)
Mozilla Stumbler - Mozilla Stumbler is an open-source wireless network scanner that collects GPS data for the Mozilla...
OpenCellID - OpenCelliD is the largest Open Database of Cell Towers & their locations. You can geolocate IoT & Mobile devices without GPS, explore Mobile Operator coverage and more!
cellumap - Cellumap is a revolution in cellular coverage maps, in that the coverage maps here are not created...
Fast.com - Quickly test your internet speed with this fast-loading speed test powered by Netflix.
Speed Test Loggger - Automate your download speed tests.