SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.

StatCounter - StatCounter is a simple but powerful real-time web analytics service that helps you track, analyse and understand your visitors so you can make good decisions to become more successful online.

Site Rank Data - View historical rank information of websites via time series charts.

AFSAnalytics - AFSAnalytics.

Quantcast - Quantcast Corporation is a digital marketing company that provides free audience demographics measurement and delivers real-time advertising.

Woopra - Track your customers' web and mobile activity, forms, emails, support tickets and more, all in one place with customer analytics. Analyze and take action.