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Originally Posted by pem
All pages effectivley have an expiry date & time.
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Ah, that makes sense, as I was wondering if the proxy had to query for a more recent page, which would increase traffic and defeat the purpose of the proxy unless you only have to retrieve the time stamp of the most recent page.
I presume this expiry time/date is set differently depending on the type of page? (very low for a forum like this) and high(er) for less dynamic pages)?
Or is it just based on recent 'refresh rates'?