website performance checker tools

1, http://tools.pingdom.com/fpt/
2, http://www.gtmetrix.com
3, http://tools.pingdom.com
4, http://www.webpagetest.org
5, http://www.whatsmyip.org/http-compression-test/
6, http://seositecheckup.com/
7, http://checkgzi

1. 8, Sematext. 
2. 9.Google PageSpeed Insights.
3. 10.Uptrends. 
4. 11. Varvy Pagespeed Optimization. .
5. 12. dotcom-monitor.