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Top 10 Website Performance Optimization Tools 2021

The average page size in recent years has grown exponentially, not only because we are dealing with much more advanced web technologies, but also because we are still learning how to utilize deep compression in all aspects of a website page. For this reason alone, the market for caching systems has literally exploded, and there is no shortage of alternatives to choose from; Varnish, Redis, even good old APC works, too!

Visitors hate having to wait endlessly for a page to fully load. It’s one of the leading reasons why people abandon websites as soon as they visit them; a slow website gives a bad impression, and why bother when there are other alternatives available? Websites that provide eCommerce services need to be especially cautious about site speed. Google has also mentioned it numerous times, that site speed is a ranking factor towards your search engine rankings.

Analyzing each separate component of your website can take a long time. That is why we have seen a huge growth in the market of web performance optimization analyzers; tools that help us analyze our website for optimal performance, give us detailed reports of our site speed performance, and insightful tips on how we can improve that performance to better reflect industry standard. What tools are you using to improve your site speed performance?


pagespeed website performance optimization tool

PageSpeed from Google is a popular testing tool that analyzes some of the most important website components; JavaScript, CSS, and Image performance. At any given time, your web pages (which you can individually check) might have openings where it is possible to compress your CSS and JavaScript, as well as improve the size of your images for complete speed optimization. Images in current age are the biggest problem, and take up the largest amount of space on each page that is loaded. While ‘lazy-load’ plugins can help, it comes down to serving properly aligned images for each individual device to provide a seamless browsing experience.


gtmetrix website performance optimization tool
Knowing the performance of your website is vital to serve the modern user with the best possible experience. Thanks to the website performance optimization tools, like GTmetrix, you can take care of the loading speed. It is a simple to use tool that helps you showcase how fast (or slow) your website loads with optimization recommendations. Keep in mind, even if you are already using one speed test tool, it is always worth trying another one.

With hundreds of millions of page analyzations so far, you know that GTmetrix is a popular tool that always does the trick. You can also take things a step further and let GTmetrix send you alerts whenever your page starts to load slowly. By the way, you can even test your site’s loading on different devices.


pingdom website performance optimization tool
Finding what is affecting your website to perform poorly is not that big of an issue once you have access to the right software, like Pingdom. Not just that, but you do not always necessarily need to pay for the service, as there are many free alternatives that will help you out. Slow websites, blogs and online stores should be optimized as quickly as possible. It even affects SEO! And that is not something you would like Google to penalize you for.

Moreover, while you can use Pingdom’s free test at any time you fancy, you can also step things up with different pricing options. Needless to say, Pingdom is ready for any web development solutions that you need, as it is fully flexible with loads of features to consider. You can always start with the free 14-day trial and go from there.


similarweb website performance optimization tool
If you are doing stuff on the internet, it is very unlikely that you have never heard of SimilarWeb. Well, if that is the case for you, you are welcome. A powerful and easy to use “market intelligence solution” that will help you figure out the volume of traffic a website receives. While you can test out yours, SimilarWeb comes very handily when you spy on your competition. Of course, the website you would like to investigate further should be live for some time now and already of at least a decent size. SimilarWeb rarely recognizes super small websites, but will not show any details for completely new pages.

In short, SimilarWeb is great for SEO, industry and niche research, sales and even investment opportunities. You can easily use the tool without even creating an account. Still, if you would like to unlock more features, SimilarWeb’s free members’ area will get you going in the right direction. There is also always the Enterprise package available for when you would like to take market intelligence super seriously.


ahrefs website performance optimization tool
If you would like to boost the SEO performance of your website, you need to become the best friend with Ahrefs. Whether you are an expert in SEO or an utter beginner, Ahrefs is for both. It is a solution that pretty much covers all and everything that you need to rank your page higher. From site audit and site explorer to keyword research, rank tracker and more, Ahrefs comes with tons of features that will help you scale your projects to new heights organically.

While you can start with Ahrefs right away, it is highly advisable to first go through their training material. This will allow you to truly understand how to use Ahrefs to its full potential. From there, you can start with the 7-day trial for $7 and enjoy the goodies that Ahrefs brings to the table. In total, Ahrefs comes with four premium packages, starting with $99 per month. Hint: you can also pay annually and get two months for free. Enjoy the SEO world with Ahrefs and make some noise when it comes to high rankings.


pagelocity website performance optimization tool

On top of analyzing on-page SEO performance, Pagelocity also takes a look at social metrics and how those are affecting your social visibility, as well as general page speed performance and individual tips on how parts of your site can be optimized for better speeds. Great to do on your own site, as well as your friends’.

Yellow Lab

yellow lab website performance tool

Yellow Lab lets you run an optimization test for a number of devices, including Desktop, Mobile and Tablet. This is essential to understand how your pages are performing in different environments, and what can be done to improve the overall site speed performance altogether. Yellow Lab’s concise reports give you an idea of page weight, DOM performance, and possible JavaScript errors that could be optimized.


perfaudit website performance optimization tool

PerfAudit is an amazing web optimization resource for anyone who is serious about learning the ins and outs of web optimization, and how you can better prepare your server, and content management system to be in sync with the latest industry standards for web optimization. Their networking guide is an amazing place to start to learn about the different ways each server and web component yields to the overall browsing experience.


yslow website performance tool

YSlow uses the Yahoo!’s web page optimization platform and works with other platforms like Chrome, Firefox, Opera, Node.js, PhantomJS, Safari, Command Line and many others. This allows webmasters to analyze their own, their clients’, and their competitors’ sites at no expense. YSlow also provides a checklist of the 23 best practices for optimizing websites for the best speed performance. Only a few weeks after using this plugin, you can already get an idea on how to manage and optimize your pages for the best possible loading speeds.

Tracing Framework

tracing framework website performance tool

Google’s Tracing Framework is everything you’ll ever need to analyze and optimize your web apps to their fullest potential. The Web Tracing Framework is a set of libraries, tools, and visualizers for the tracing and investigation of complex web applications. You spend a small amount of time instrumenting your code; thus, it helps you discover performance problems, track regressions, and build smooth 60 fps web apps. And although it’s currently available for use, it still has a long way to go before becoming an industry-standard tool. But because it’s coming from Google, we trust that the process of development will be seamless.

Yandex Tank

yandex tank website performance tool

Are you a Linux user? Are you working with a lot of code on daily basis? Do you need an open-source platform for load-testing your code and apps? Yandex Tank was built with that idea in mind.

For more tips on how to speed up WordPress, you can read this guide.

Disclosure: This page contains external affiliate links that may result in us receiving a commission if you choose to purchase mentioned product. The opinions on this page are our own and we don't receive additional bonus for positive reviews.

Alex Ivanovs

Alex is a freelance writer with more than 10 years of experience in design, development, and small business. His work has been featured in publications like Entrepreneur, Huffington Post, TheNextWeb, and others. You can find his personal writing at The Divine Indigo.

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