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 672,558 websites Rack Cache Customers. We know of 192,064 live websites using Rack Cache and an additional 480,494 sites that used Rack Cache historically and 149,203 websites in the United States.
Get a list of 672,558 websites using Rack Cache which includes location information, hosting data, contact details, 192,064 currently live websites and an additional 122,662 domains that redirect to sites in this list. 480,494 sites that used this technology previouslyand 149,203 websites in the United States currently using Rack Cache.
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