Rankchart - Rankchart is one of the unique websites that allows you to examine your websites or watch competitors and locate rich information about website technologies, site reputation, errors, SEO, and ad-word recommendations.
SimilarWeb - SimilarWeb.com is a website analysis tool that gives you analytics information for any website.
WebsiteOutlook - WebsiteOutlook is an all-in-one website that provides you detailed information on famous websites based on various data sources like traffic, page rank, and estimated ad revenue.
HypeStat - HypeStat is free statistics and analytics service, where you can find information about every website.
cutestat - Website Stats and Valuation. CuteStat.
Bullmask - Bullmask is a popular torrent search engine. It provides free Movies, Ebooks, Softwares and more. They offer free website stat tool with Bullmask Analyze.