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Jeff Garzik's Linux Pages: 'Expires' website speed boost

Dec 27, 2006, 12:00 (0 Talkback[s])
(Other stories by Jeff Garzik)

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[ Thanks to Jeff Garzik for this link. ]

"...consider the "question" that each browser and caching proxy must ask itself, before requesting a page: Has this content changed since the last time I requested it from the server?

"It should obvious that the answer to this question cannot be obtained from a last-modified timestamp."

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