Loadium - Performance Testing & Load Testing Tool
Speedtest by Ookla - Measure your ISP's performance in a click
Blazemeter - BlazeMeter is a self- service performance load testing cloud tool
Global Website Speed Test - Test website load speed from 18 cities, including 3 in China
Meteor - Meteor is a set of new technologies for building top-quality web apps in a fraction of the time.
flood.io - Load Testing for Everyone