Here are some website speed and performance testing tools for web developers.
https://developers.google.com/speed/pagespeed/insights/
http://www.webpagetest.org/
https://tools.pingdom.com/
https://gtmetrix.com/
Here are some website speed and performance testing tools for web developers.
https://developers.google.com/speed/pagespeed/insights/
http://www.webpagetest.org/
https://tools.pingdom.com/
https://gtmetrix.com/