Hello I have the following problem - my website had in Dec 2010 around 100,000 unique visitors and now it has around 50,000 unique visitors (apr 2011). Comparing the results... in December we had 46,500 keywords while in april only 25,000. There is a big difference which comes mostly from long tail keywords which is impossible to measure manually or to see differences manually. Can you suggest any tool which can show me - which are the lost keywords and other ways to compare the two months? Another problem - I would like to compared Dec 2010 with Apr 2011, however analytics only allowes to compare by past, not by future months ;(. Is there a work around for this ? thank you!!
Have you tried to export keywords into excel? I think the limit is 40K and even then you have to add &limit=40000 to the end of the download to csv URL. Then compare using some kind of matching discover which keywords losing ranking and evaluate and prioritize which lost keywords to optimizations for. Good luck!
This is a common case for the website i run. I run a seasonal business, so i get massive amount of traffic in December and August... Traffic is less than a quarter in all other month... But if your business is not a seasonal one, you can also check how your competitors have changed their sites recently...