Rage Grade by FullStory - Benchmark your customer frustration
cutestat - Website Stats and Valuation. CuteStat.
DevDojo - Dev tools and resources for building awesome stuff
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.
Hey Meta - Quickly check, improve and generate your website's meta tags
Site Worth traffic - Site Worth traffic is a cost-effective site that is introduced to estimate the value, daily page views, daily visitors, and daily revenue of a website.