Loadium - Performance Testing & Load Testing Tool
speedtest-cli - Test your download speed using SpeedTest on the command-line
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
Speedtest by Ookla - Measure your ISP's performance in a click
flood.io - Load Testing for Everyone