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Originally Posted by trebor
I have updated my website today and it is taking ages ages for the proxies to refresh the pages they are holding. I am only posting this to see if anybody has noticed the problem and to warn anybody that may have a problem with them at the moment.
the work around if you need it is to set an explicit proxy.
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Have you tried putting your website through the Cacheability Checker?
http://www.ircache.net/cgi-bin/cacheability.py
Then you can see exactly what the content freshness headers are that are being sent by the web server and which will be used by any proxies
and your browser to assess when to check for new content.
However if you say that the problem disappears when you use a proxy directly then it sounds as if the transparent cache redirection mechanism (WCCP on the Cisco routers) is broken rather than the proxies - so you'd do best to log a call with ntl support.