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 587,079 websites that are Rack Cache Customers. We know of 96,984 live websites using Rack Cache and an additional 490,095 sites that used Rack Cache historically and 69,027 websites in the United States.
Get a list of 587,079 websites using Rack Cache which includes location information, hosting data, contact details, 96,984 currently live websites and an additional 154,564 domains that redirect to sites in this list. 490,095 sites that used this technology previouslyand 69,027 websites in the United States currently using Rack Cache.
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