Simon Willison’s Weblog

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Items tagged http, squid

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Traffic Server. Mark Nottingham explains the release of Traffic Server, a new Apache Incubator open source project donated by Yahoo! using code originally developed at Inktomi around a decade ago. Traffic Server is a HTTP proxy/cache, similar to Squid and Varnish (though Traffic Server acts as both a forward and reverse proxy, whereas Varnish only handles reverse). # 1st November 2009, 12:15 pm

ncache. A squid-style caching system built on top of nginx. Supports the HTTP PURGE method for cache invalidation. # 18th June 2008, 8:09 pm

HTTP Cache Channels (via) Interesting extension to the HTTP caching model by Mark Nottingham: caches can be told to subscribe to an Atom feed which alerts them to cached data that has gone stale. Group invalidation is also supported. # 4th January 2008, 12:48 pm

Two HTTP Caching Extensions. stale-while-revalidate serves cached content even while a refresh has been triggered and is currently being pulled in to the cache; stale-if-error serves cached content if a service has gone down. # 12th December 2007, 11:23 am