CSS Containment is a module that describes a CSS property called contain. This property allows developers to isolate a specific element’s subtree in the DOM and treat it as independent and separate from the rest of the elements in the [...]
Google Analytics 4 (GA4) uses the gtag.js library, loaded from Google’s servers with a cache expiration of just two hours. Speed testing tools like Google PageSpeed Insights and GTmetrix flag this as a “Serve static assets with an efficient cache [...]
The plugin WP-Rocket is now used on more than 4 million WordPress sites, and it still delivers some of the best speed gains you can get from a caching plugin. It’s easy to use and includes a few features you [...]
One of the most frustrating things that happen when browsing a website is unexpected layout changes on a page. A popup appears out of nowhere. Content shifts while you’re reading. A button moves just as you’re about to click it. [...]
How to Use WebPageTest for Website Performance Analysis and Why It's Superior to Other Tools?
What is Time to First Byte (TTFB), and how can it be improved? For those of you who are testing the speed and loading time of WordPress websites (and in general), there are several metrics that help understand the factors [...]
The preconnect option is an important tool in your toolbox, not only for loading Google Fonts. As shown in the example above, using preconnect saves roundtrip time, especially in the critical upper part of your site or application. In certain [...]
Core Web Vitals represent a set of metrics used by Google to assess the user experience (UX) of a specific website and are unrelated to the content quality on the site
YouTube is a popular video streaming platform owned by Google. With over a billion users and billions of daily views, YouTube videos can be found practically everywhere on the internet. Using your YouTube account is a convenient way to add [...]
Delaying Javascript, in other words, Defer parsing of Javascript, is one of the messages you might receive when checking your website’s speed using tools like GTmetrix and Pingdom. This message indicates that the browser needs to process content within a [...]
I often get asked how to defer JavaScript loading on WordPress sites. The main reason you’d want to do this is to improve page speed and make sure content is visible before scripts run. Since WordPress 6.3, you can set [...]
Let's see how to remove, or rather, how to prevent WooCommerce from loading unnecessary JavaScript and CSS files on every page of your site, but only on the pages where WooCommerce is active.