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I am trying to make a push notification about Internet page update, but downloading the full page (700k) again every minute is quite troublesome for users. Is there is a way to download only a specific part of page?
As far as I have read there isn’t any way to get delta information about the page. Is there a method which allows that? I haven’t found one for a day (if there is, how can I locate the certain byte where my information is placed in the first place?
You could use a Range header like this:
This will obviously get you the first 1000 bytes.