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 17,528,024 websites Google Maps API Customers. We know of 4,875,106 live websites using Google Maps API and an additional 12,652,918 sites that used Google Maps API historically and 2,023,590 websites in the United States.
Google Maps API websites that are also using other technologies.
Get a list of 17,528,024 websites using Google Maps API which includes location information, hosting data, contact details, 4,875,106 currently live websites and an additional 3,921,843 domains that redirect to sites in this list. 12,652,918 sites that used this technology previouslyand 2,023,590 websites in the United States currently using Google Maps API.
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