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 594,923 websites that are Rack Cache Customers. We know of 95,367 live websites using Rack Cache and an additional 499,556 sites that used Rack Cache historically and 67,983 websites in the United States.
Get a list of 594,923 websites using Rack Cache which includes location information, hosting data, contact details, 95,367 currently live websites and an additional 151,813 domains that redirect to sites in this list. 499,556 sites that used this technology previouslyand 67,983 websites in the United States currently using Rack Cache.
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