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Services listed: Akamai, Anonymizer, Intel Quick Web, and Mirror Image.

While not a single caching product, Akamai provides seamless web distribution across a dispersed network of servers.

Anonimizer provides anonymous web services including browsing, email, and publishing.

The Apache HTTP server has a caching module.

Artecon's CacheBack is an OEM version of Inktomi's Traffic Server.

Intelogis offers the Avirt line of internet sharing and caching products for the home as well as small and medium-sized business use under Windows. [Product used to be called Spaghetti.]

The CacheFlow's products focus on reducing latency and uses prefetching techniques.

The CERN/W3C HTTPd was the original proxy cache (actually a caching httpd server), developed initially at CERN and later maintained at the W3C.

The Cisco Cache Engine sits next to (mostly) Cisco routers and receives transparently redirected HTTP requests.

Cobalt Networks offers the CacheQube and CacheRAQ 2, transparent caching appliances that caches HTTP, FTP, Gopher, and DNS.

CSM Proxy (used to be called Open Sesame) provides proxies for many protocols. Versions available for Win95/98/NT as well as UNIX.

DeleGate is a free multi-purpose proxy server which runs on multiple platforms (Unix, Windows and OS/2, source available).

InfoLibria has developed the DynaCache product.

Spectrum Information Technologies offers FastLane: a web acceleration service that speeds web image transmissions by compressing them before sending to the client. Runs on Windows NT.

IBM Web Traffic Express supports HTTP 1.1 and runs on AIX, OS/2, Windows NT, and Solaris.

Eolian's InfoStorm is based on a Squid and Linux platform, but has enhancements to update content and track freshness, and perform load balancing from client browser.

The Inktomi Traffic Server provides terabyte-sized caches through clustering.

Intel is discontinuing it's Quick Web service, which was designed to reduce the resolution of inline images to lower page load times.

Lucent offers the IPWorX product line, which includes web caching, redirection, as well as content management and reporting.

Jigsaw is W3C's new reference implementation for HTTP/1.1 and has a caching module.

Intellitronix produces JProxyma, a Java-based, JINI-enabled proxy that supports many protocols, including HTTP and can cache it.

Lagoon was originally created to reduce network load in an automated web search system.

The Microsoft Proxy Server runs under Windows NT.

MOWS is a modular, distributed web and cache server written in Java.

NetCache was originally based on the Harvest research code. In March of 1997, Network Appliance acquired the NetCache product.

NetFilter is a proxy cache with a specialized filtering capability and service, ported to many UNIX platforms.

NetHawk, a high-performance software HTTP proxy cache, was originally developed as Peregrine, and is now available from Tasmania Network Systems. (Before September 1999, NetHawk was a product of Falcon Web Systems.) In October 1999, Cisco purchased Tasmania Network Systems.

The lead architect of the Netscape Proxy Server was also the primary developer of the CERN proxy.

The Novell BorderManager FastCache is a proxy cache running under Novell and NT-based networks.

Novell also offers a higher-performance version called the Novell Internet Caching System in partnership with OEMs including Dell and Compaq.

Peo Cao and her students at The University of Wisconsin developed a high-performance proxy cache, called Peregrine, which is now being developed commercially as NetHawk.

Pushcache.com offers Cuttlefish, an open-source implementation of their pushcache services based on Squid.

The free Roxen Challenger httpd server includes a proxy caching services. Available for UNIX and NT.

Squid is a freely available caching package, derived from the Harvest research software. Squid runs on many Unix platforms and caches HTTP, FTP, and Gopher requests. (Page also available here.)

Sun offers Netra j software which provides proxy cache services, among others.

Entera offers a multi-protocol caching system called TeraNode.

Mirror Image's Central Cache Connection is a simple add-on service that works in conjunction with many caching products.

Viking is a Windows 95/NT proxy with support for many protocols (HTTP, POP3, SMTP, FTP, ICP) and works as an origin server. Also performs prefetching.

Vicomsoft offers a number of gateway and connection sharing products, including their SoftRouter Plus which includes a caching component. Available for Windows and Macintosh.

Wcol uses prefetching to reduce latency at the expense of increased bandwidth. Also has a catalyst mode (non-caching) that just provides hints to another proxy cache.

Packetstorm Technologies/Industrial Code and Logic build a caching appliance called WebSpeed.

Deerfield.com offers WinGate, a proxy server for Windows 95/NT that also allows a local network to share a single Internet connection.