If you want to see how your page loads exactly, you can enable the Video option. It’s important to consider that a website can be perfectly usable in a shorter amount of time than that indicated by the Fully loaded time. That’s why, by default, GTmetrix will test your site considering the Fully loaded time: it waits for the Onload event to fire (including ads and below the fold elements) and then waits for a network inactivity of 2 seconds. The inconvenience of using this option is that, sometimes, not all the elements of the page are downloaded before the Onload event fires (think about JavaScript based images carousels, or similar behaviors)Īs a result, page load times measured when this option is enabled could be inconsistent. The Onload event is when the overall processing of the page is over, and all the resources of the page have been downloaded. This will stop the speed test right after the Onload event, instead of after 2 seconds of network inactivity (which is the default for GTmetrix, and is referred to as Fully loaded time). You can check a real case example on GTmetrix’ site, where they used Smashing Magazine website. When you tick the AdBlock option, GTmetrix will scan your URL while ads are blocked. With this option you can see the impact Ads have on your site. GTmetrix gives you several possibilities: Now that Google switched to mobile-first indexing, being aware of how your site performs on different types of networks is crucial. You can find GTmetrix servers’ locations here. In this case, don’t forget to enable a CDN on your site! This means that if your server is located in Europe, testing your speed from Canada would give you a misleading result, unless you’re targeting Canadian audience, too. As we mentioned in our article about how to correctly measure your website’s speed, the first step to get reliable results for speed tests is to choose a location as close as possible to your server. There are 30 test servers available to try. There are several options that you can tweak to customize your testing experience with GTmetrix. This allows you to customize your test and have a more reliable performance result. The first thing we suggest doing before running a performance test with GTmetrix, is to create a free account. They provide dedicated, clustered, and private cloud hosting solutions, plus a specific toolset dedicated to performance: among them, there’s GTmetrix. GTmetrix is the free performance testing tool built by the people of GT.net, a hosting company based in Vancouver, Canada. In this tutorial we’re going to deep dive into GTmetrix, and you’ll understand why it’s a very valid tool to assess the real performance of your website. Several customization options (test server region, type of browser, etc.) make the experience with GTmetrix complete and reliable. While PageSpeed mostly focuses on colors and score to guide users through its recommendations, GTmetrix counts on a more classic interface, where its waterfall plays the leading role. GTmetrix is one of the best alternatives to PageSpeed Insights when it comes to measuring the performance of your site.Īt WP Rocket we use GTmetrix daily, along with other performance testing tools, to help our customers audit their sites and making the most of its recommendations.
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