New to cohorts? Check out the Introduction to Cohort Analysis for Startups.

Clearly cohort analysis is a great tool to track retention and user engagement but how do you set up your blog, game or web service to track cohort groups? Google Analytics doesn’t support cohort tracking as a standard feature. The service primarily targets traditional site navigation metrics such as visits, pageviews, traffic sources and bounce rate. In the past, most companies relied on in-house solutions to get visitor-level data – and many still do. But for those unable or unwilling to create a custom analytics application for their product there haven’t been a lot of alternatives.
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