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To be absolutely sure, search for a very specific phrase that is uniquely to be found on the web page you want to check. Put the phrase in " " in the search field. If Google has that web page indexed then it will come up in a search.
From the google homepage I used to always to [wwwm.mydoman.com...] search and click on the cache copy to see if it has the recent version of the website. Not sure if its still effective.
regards,
Mark