The top eleven tools for performance testing are as follows:
  1. Google Page Speed Insights – a tool that measures the performance of a website on both mobile and desktop devices.
  2. WebpagetestThis tool checks to see if there are any issues with the site’s loading speed.
  3. GTMetrixis tool that allows you to evaluate the performance of website..
  4. Pingdomis website monitoring service that also doubles as free automated website testing utility.
  5. Gomezobserving from variety of perspectives. There are more than 100 locations to choose from.
  6. Alertra – viewing from several locations.
  7. Load Impact – testing from several locations and performance reports.
  8. FeedTheBot – performs optimization and performance tests on a website.
  9. Dotcom Monitor – perform site performance tests from 20 different locations with a single click using Dotcom Monitor.
  10. RedBot is a small utility that checks the HTTP headers for errors.
  11. Neustar Ultratools – is a collection of utilities for testing the performance of hosting, DNS, and other services.