Website Grader - Grade your website's strengths and weaknesses in seconds.
Privacy Pal - Enter any website address to get a quick, simple overview of its Terms of Service.
Checkbot - Checkbot will boost the SEO, speed and security of your site by checking you're following 50+ web best practices. Browser extension with free and paid plans.
Ghostery - Privacy tool for transparency and control
PageSpeed Ninja - One-click page speed boost for WordPress
TrackMeNot - TrackMeNot is an extension for the leading web browsers that allow the users to protect the web searchers from data profiling and surveillance by search engines.