WP Speed of Light is a WordPress speedup plugin and load time testing. Cache, Gzip compression, minify, database optimization tools
SPEEDRON Speed Test is totally FREE plugin. Let your users check their Internet connection speed with this pretty tool.
WordPress Veloce increases WordPress page load speed to get a higher score on the speed testing services like Google PageSpeed Insights, Gtmetrix, Pin
This plugin shows Google PageSpeed scores for the themes installed from the official WordPress theme repository.
This plugin allows your users to test internet connection speed.