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 17,479,247 websites that are Google Maps API Customers. We know of 5,512,249 live websites using Google Maps API and an additional 11,966,998 sites that used Google Maps API historically and 2,296,685 websites in the United States.
Google Maps API websites that are also using other technologies.
Get a list of 17,479,247 websites using Google Maps API which includes location information, hosting data, contact details, 5,512,249 currently live websites and an additional 4,590,936 domains that redirect to sites in this list. 11,966,998 sites that used this technology previously and 2,296,685 websites in the United States currently using Google Maps API.
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