Allow restrictions

It took me a while to get geocoding from the addressfield working and it included setting up a paid Google account. I dopn't expect to ever generate enough page hits to pay (this is strictly for dev purposes), but having to create a paid account with an unrestricted key is scary.

Restricting by IP seems to work, though. Just passing this along...

Thanks ...
BUT It is not the Drupal Geocoder module in charge of enabling or disabling the Google Maps API Key restrictions.
Any/all of those restrictions should work based on your Google Console settings, both on the domain and the IPs, etc,
because it is still a matter of http servers request/response logics ... that's it.
And of course all this could be very specific to Google Maps ... and not to the other many providers this module supports.
So indeed this looks out of scope of this Drupal module, hence closing this accordingly.

Just following up I still couldn't figure out how to make the "Website" url restriction work, after trying every variation on my domain I could think of.

Finally opting for IP restriction as bcobin suggested in combination with restricting it to just the Geocoding API one.