6 ms·

It looks to be the plain ole Google Maps API: https://developers.google.com/maps/documentation/javascript/examples/layer-heatmap https://developers.google.com/

by omd 13y ago

It looks to be the plain ole Google Maps API: https://developers.google.com/maps/documentation/javascript/examples/layer-heatmap https://developers.google.com/maps/documentation/javascript/...