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 107,285 websites that are Algolia Customers. We know of 22,027 live websites using Algolia and an additional 85,258 sites that used Algolia historically and 13,167 websites in the United States.
Get a list of 107,285 websites using Algolia which includes location information, hosting data, contact details, 22,027 currently live websites and an additional 76,067 domains that redirect to sites in this list. 85,258 sites that used this technology previously and 13,167 websites in the United States currently using Algolia.