Downstream caches
So far, this chapter has focused on caching your own data. But another type of caching is relevant to web development, too: caching performed by downstream caches. These are systems that cache pages for users even before the request reaches your website. Here are a few examples of downstream caches:
- Your ISP may cache certain pages, so if you requested a page from
http://example.com/
, your ISP would send you the page without having to accessexample.com
directly. The maintainers ofexample.com
have no knowledge of this caching; the ISP sits betweenexample.com
and your web browser, handling all of the caching transparently. - Your Django website may sit behind a proxy cache, such as Squid web Proxy Cache (for more information visit ...
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