Algolia's Search API makes it possible to deliver a search experience in your apps & websites.
http://algolia.com
Widgets · Site Search
Get access to data on 110,849 websites that are Algolia Customers. We know of 21,275 live websites using Algolia and an additional 89,574 sites that used Algolia historically and 12,818 websites in the United States.
Get a list of 110,849 websites using Algolia which includes location information, hosting data, contact details, 21,275 currently live websites and an additional 64,738 domains that redirect to sites in this list. 89,574 sites that used this technology previously and 12,818 websites in the United States currently using Algolia.