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You could also track the average position & the keywords in the Landing page report of GWT - as GWT only keeps data for the last two months - you could download the data on a regular basis and check if there is an impact (keywords used to get to the page / avg. position) As mentioned by Chris  - you can also use the Google Analytics Landing page report and check if there is an increase in organic traffic on the page and if other vital parameters (like bouncerate, time on page, pageviews/visit,...evolve in the right direction) rgds Dirk