Integrate your Google Analytics account and see how the various algorithm updates have affected your websites' traffic. GOOGLE UPDATES TIMELINE
Add AnalyticsTo keep up with web spammers and to make sure unnatural SEO practices are kept under check, Google keeps updating its search algorithm. The number of changes range from 400-500 each year (2010 had 516 updates), while close to 10,000+ changes are itself tested each year.We have listed below the changes that have brought the most turbulence to webmasters around the world. This should help better understand of what exactly is Google wanting with your websites.