mnot’s Web log: The State of Proxy Caching

A while back I wrote up the state of browser caching, after writing a quick-and-dirty XHR-based test page, with the idea that if people know how their content is handled by common implementations, they’d be able to trust caches a bit more.

The other half that they need to know about, of course, is proxy caching; depending on who you listen to, somewhere between 20% and 50% of clients on the internet are behind some kind of proxy, and since they’re operated on behalf of a network provider, rather than the publisher or end user.


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