Rack::Cache is a component to enable HTTP caching for Rack-based applications such as Rails.
http://rtomayko.github.com/rack-cache/
Web Servers
Get access to data on 676,478 websites Rack Cache Customers. We know of 220,474 live websites using Rack Cache and an additional 456,004 sites that used Rack Cache historically and 169,679 websites in the United States.
Get a list of 676,478 websites using Rack Cache which includes location information, hosting data, contact details, 220,474 currently live websites and an additional 141,170 domains that redirect to sites in this list. 456,004 sites that used this technology previouslyand 169,679 websites in the United States currently using Rack Cache.
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