Site Rank Data - View historical rank information of websites via time series charts.
Optmyzr - Optmyzr AdWords Tools. Optimization Solutions, Quality Score Tracker, Landing Page Checker, and more. Free Trial Available.
Seoxan - check seo report for any website, alexa ranking, server information, meta tags, authority, page speed and more
Freshmarketer - An all-in-one CRO suite.
VALBOT.COM - VALBOT.COM provides domain name valuations.
Crazy Egg - Through Crazy Egg's heat map and scroll map reports you can get an understanding of how your visitors engage with your website so you can boost your conversion rates.