Blue Coat Systems Inc, formerly known as CacheFlow, Inc., is a United States-based company, which provides Web security and WAN optimization solutions. The Company offers solutions that provide the visibility, acceleration and security required to optimize and secure the flow of information. Its products include ProxySG, which provides control over Web traffic with features that include user authentication, Web filtering and more; Cloud Service, which routes traffic to the closest data center based on a users geographic location; MACH5, which focus on optimization for data, video, cloud and Web applications; PacketShaper, which analyzes and identifies traffic generated by the business and recreational applications; and CacheFlow, a Web caching solution designed to help service providers to save bandwidth and accelerate the delivery of Web 2.0 content. The Company maintains support centers in Sunnyvale, London, Tokyo, Kuala Lumpur, Waterloo and Dubai.