Website Grader - Grade your website's strengths and weaknesses in seconds.
Speedtest by Ookla - Measure your ISP's performance in a click
Smaller - Make your websites load faster
Global Website Speed Test - Test website load speed from 18 cities, including 3 in China
Textalyzer - Analyze text readability and SEO parameters
Meteor - Meteor is a set of new technologies for building top-quality web apps in a fraction of the time.