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 17,761,984 websites that are Google Maps API Customers. We know of 3,974,065 live websites using Google Maps API and an additional 13,787,919 sites that used Google Maps API historically and 1,720,283 websites in the United States.
Google Maps API websites that are also using other technologies.
Get a list of 17,761,984 websites using Google Maps API which includes location information, hosting data, contact details, 3,974,065 currently live websites and an additional 3,819,477 domains that redirect to sites in this list. 13,787,919 sites that used this technology previouslyand 1,720,283 websites in the United States currently using Google Maps API.
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