WebPageTest – Free Website Performance and Optimization Test

https://www.webpagetest.org/

After google page insights, Webpagetest is one of the most popular website performance checker tool .Its one of the detailed and free tools for measuring webpage performance. This superb website Webpagetest enables you to run web performance tests on any of your website URL from a number of different locations and number of different browsers

So Start your website free performance test and start optimising it.