GTmetrix is a free tool that analyzes your page;s speed performance.

爱站网提供的超级ping

Boce-免费提供网站速度测试、网络速度检测、多地区在线ping检测、dns查询、路由跟踪查询

Pingdom Use this free Website Speed Test to analyze the load speed of your websites, and learn how to make them faster.