UI Performance Testing Tools

Now a day, it is straightforward to check the response time of any website from different geographical locations. For a company, it’s important to determine the website’s or system’s performance on a regular basis. The better performance of the website of any organization increases the ranking in the search engines like Google and faster pages result in greater customer engagement, retention, and conversion. There are many tools that are available on Google which help to conduct UI performance testing and provide quick results.

Such tools also help to identify the speed of the web page and the causes of its slowness etc. Some performance testing tools provide a waterfall breakdown and the website preview as well to get a clear and transparent report. Below a list of tools is provided which can be used to test the performance of a website at the client end over the internet. Even some tools have the features to simply enter the URL, choose locations and browsers (it is auto-provided in some of the websites) and click start test. You will instantly get the test result hardly in a couple of minutes. So easy!

Google Lighthouse

URL: https://developers.google.com/web/tools/lighthouse


  • In-built in Google Chrome Browser for a quick and hassle-free test.
  • Easy to automate using various options.
  • Easy to integrate with CI.
  • The result contains both Mobile and Desktop performance stats
  • It provides a detailed report

Google PageSpeed

URL: https://developers.google.com/speed/pagespeed/insights/


  • Quick Test and Analysis
  • The result contains both Mobile and Desktop performance stats
  • Shows quick results along with Page Speed and Optimization score
  • Shows Optimization Suggestions to improve the performance of the website


URL: https://www.dotcom-tools.com/website-speed-test


  • Verify the performance of the site from 25* locations across the world (* on 16/02/2021)
  • Browser & Device: Mozilla, Firefox, IE, iOS and Android
  • Testing Regions: USA, South America, Europe, Middle East, Asia, Australia and Africa
  • Screen Resolution and Network Throttling options are available.


URL: https://tools.pingdom.com/


  • 7 different location options are available to test the Geographical distance impact on the website.
  • You can not test the website for all listed locations in one go.
  • The browser selection option is not available. It uses Google Chrome to hit your website
  • Testing Regions: USA, Asia, South America, Europe and Australia
  • They provide sharp analysis within a minute
  • Also helpful for DNS health check-ups


URL: https://gtmetrix.com/


  • Browser and location selection options are not available in the sign-off version. It uses the Chrome browser and Vancouver and Canada locations to hit the website.
  • It provides a user-friendly analysis report having a lot of dig-down options
  • gtmetrix tool also provides the history of your test. The history option helps to compare two test results (pre and post-performance tuning results)
  • Results are in a proper waterfall model manner.


URL: https://tools.keycdn.com


  • The browser selection option is not available. It uses Firefox to hit your website
  • Verify the performance of the site from 10 locations across the world
  • You can also choose a specific location to hit your website via the “Site Speed Test”
  • A simple report is generated by having response time and DNS.
  • They also have other tools like IP location finder, Ping Test etc.

Note: The information provided in this post is written on 16/01/2021. Kindly visit the URL to get the updated information. PerfMatrix is not responsible for any kind of changes in the features of the posted tools.

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