Google Maps has a wide array of APIs that let you embed the functionality of Google Maps.
https://developers.google.com/maps/
Mapping
Get access to data on 17,917,025 websites that are Google Maps API Customers. We know of 3,791,779 live websites using Google Maps API and an additional 14,125,246 sites that used Google Maps API historically and 1,655,581 websites in the United States.
Google Maps API websites that are also using other technologies.
Get a list of 17,917,025 websites using Google Maps API which includes location information, hosting data, contact details, 3,791,779 currently live websites and an additional 3,638,159 domains that redirect to sites in this list. 14,125,246 sites that used this technology previouslyand 1,655,581 websites in the United States currently using Google Maps API.
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