Hi all,

I need to write an application that accepts a list of URLs and checks them
on a daily basis (via cron) to see if the pages have changed in the past day.

I need some help with this. Does anyone know the most optimal way to find
out when a particular Web page has been modified? I am thinking about using
the Last-Modified: HTTP header - however, all servers do not return this
header - any ideas on what the fallback should be?


"I find your lack of faith disturbing." 
                        --Darth Vader 

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