Endpoint:
geo.thx.dog
Returns:
{"success":true,"ip":"2600:1f28:365:80b0:98c3:3d83:c0f2:71dd","geo":"Ashburn, Virginia
United States 20149"}

Endpoint:
geo.thx.dog?callback=func
Returns:
func({"success":true,"ip":"2600:1f28:365:80b0:98c3:3d83:c0f2:71dd","geo":"Ashburn, Virginia
United States 20149"});

Endpoint:
geo.thx.dog/xx.xx.xx.xx
Returns:
func({"success":true,"ip":"xx.xx.xx.xx","geo":"Geo Here"});

Endpoint:
geo.thx.dog/xx.xx.xx.xx?callback=func
Returns:
func({"success":true,"ip":"xx.xx.xx.xx","geo":"Geo Here"});