As higher visitor engagement, retention and conversions are obtained through fast and optimised web pages, one needs to identify performance best practices that can be applied to his/her website. As studies show that users leave a website if it hasn’t loaded within 4 seconds, you need to keep your users happy and engaged by providing a fast performing website which is also good from a SEO perspective, as Google nowadays take into account the loading speed as a ranking factor. The following websites are meant to help you determine how fast your website really is and take the necessary actions to speed the loading of your pages:

1) PageSpeed Insights

Measures the performance of a page for mobile and desktop devices. The URL is being fetched twice: once with a mobile user agent, and once with a desktop user agent. The page score ranges from 0 to 100 points. The higher the score, the better. If you have a score over 85, it suggests that the page is performing well.

This tool measures how a page can improve its performance on:

  • Time to above-the-fold load: Elapsed time from the moment a visitors requests a new page and to the moment the above-the-fold content is rendered by the browser.
  • Time to full page load: Elapsed time from the moment a visitor requests a new page to the moment the page is fully rendered by the browser.

page speed insights

2) Pingdom Website Speed Test

It was built to help you analyze the load speed of your websites and learn how to make them faster. Tests are done with real test browsers from dedicated Pingdom servers to match exactly the end user experience. They use a bunch of instances of Google’s Chrome web browser to load websites, record performance data and so on.

Features include:

  • Examine all parts of a web page – View file sizes, load times, and other details about every single element of a web page (HTML, JavaScript and CSS files, images, etc.). You can sort and filter this list in different ways to identify performance bottlenecks.
  • Performance overview – They automatically put together plenty of performance-related statistics for you based on the test result
  • Performance grade and tips – See how your website conforms to performance best practices from Google Page Speed (similar to Yahoo’s Yslow). You can get some great tips on how to speed up your website this way.
  • Trace your performance history – We save each test for you so you can review it later and also see how things change over time (with pretty charts!).
  • Test from multiple locations – See how fast a website loads in Europe, the United States, etc.
  • Share your results – They’ve made it easy for you to perform a test and share it with your friends, work colleagues or web host.

Pingdom Website Speed Test

3) GTmetrix

This service uses Google Page Speed and Yahoo! YSlow to grade your website’s performance and provides actionable recommendations to fix the issues. You can test your website and get extra features if you sign up for free. Some of the benefits include but not limited to:

  • Track History with Graphs: With 3 interactive graphs, you can keep track of the performance for your page and visualise your history
  • See how your page performs on an actual Android device; thus you can optimise your website for mobile users and ensure a fast page load on their devices.
  • Test from multiple locations – check the page load from different regions around the world (Vancouver, Canada; Dallas, USA; London, UK; Sydney, Australia; São Paulo, Brazil; Mumbai, India; Hong Kong, China)
  • Playback Page Load with Videos – By recording your page loads, you can pin point exactly where bottlenecks or stoppages occur.
  • Set up Monitored Alerts – You can be notified if your page speed falls below a certain score you set.

gtmetrix website speed performance optimisation

4) Dotcom-Monitor

This is a web performance company based in Minneapolis, Minnesota that monitors websites, servers and applications for availability, speed and functionality from their worldwide network. The free website speed test provides:

  • Browser-based load time testing of all page elements
  • Test via Chrome, Firefox, IE and mobile web browsers
  • Results from nearly 2 dozen global locations
  • Detection of slow/missing elements
  • Complete waterfall report, charts & graphs

With this tool, you can test your page loading speed in 20 locations worldwide, including cloud based tests (Amazon-US-East) and from behind the Great Firewall of China (Shanghai).

Dotcom Monitor

5) PageScoring

This service provides webmasters with valuable information about the loading speed of their domain and website. The tool generates a report that includes:

  • Domain Lookup: The time taken to resolve your domain to the correct server IP
  • Connection Time: The time taken to establish a connection to the web server
  • Page Size: Total page size of the website downloaded in bytes
  • Download Time: Time taken to download the HTML source code
  • Average Speed: The average speed of connection during download
  • Files Report: Details about the files loaded (size, path) and how fast they loaded

Page Scoring

6) Gift of Speed

Recent studies have shown when web pages do not load within 3 seconds, 25% of visitors will already have left.

Besides testing your website speed, this service also offers a range of tools including:

  • CSS Compressor: Automatically compress your CSS scripts and files into a much smaller size. Minimizing the disk size your CSS needs can improve page speed.
  • JavaScript Delivery Test: Check how you can improve your Javascript delivery by running this test.
  • Caching Checker: Check whether your files are correctly cached or not by viewing the caching information of your URL.
  • Gzip Test Tool: Tool to check whether your page has GZIP enabled and how well it compresses.
  • CSS Delivery Test: Test whether your CSS delivery is optimized to the maximum and learn how to improve the delivery.

What I particularly like about this service is the fact that they have a “How to” section with a lot of articles about improving page speed and steps you need to do. Very good to go through, especially for beginners!

gift of speed test

As you can see, each of these services has its advantages and way of testing your page load speed. I recommend using more than one tool to test the speed of your websites as you will get results as accurate as possible having multiple servers loading your pages from various locations around the world.

Has any of these websites helped you in particular to measure website speed? If so, please share your experience with us.


  1. Thanks for this awesome list you’ve made of tools that would help measure website speed. And to think there were free ones too.

    • You’re welcome! There will be more posts about website speed definitely. I’m looking forward to release soon a free WordPress plugin to manage scripts and styles per page or all pages of the website to remove unused ones, thus having less HTTP requests which will make the website load faster and the HTML code will be cleaner and easier to read/scan 😉

  2. Hi Gabe,

    Just wanted to say thank you for your amazing plugin. I’m not one to exaggerate, but on this occassion wish to show respect where it’s due. Anyone contemplating their next move on the optimization ladder need look no further than Asset CleanUp.

    Caching plugins can only take you so far before they run out of gas. Asset CleanUp takes the baton and runs with it, obliterating every benchmark that acts the tough guy.

    Overly dramatic? Well it would be if I weren’t simply telling the truth.

    Thanks once again, Gabe, you have a plugin that deserves every one of its glittering reviews.


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