Learn how to optimize Largest Contentful Paint for background images.

Which one makes more sense to use, big and slow or small and fast? Especially with the same appearance and functionality, the youtube-lite component is a no-brainer.

The original website carbon calculator tool, brought to you by Wholegrain Digital,London's original sustainable WordPress agency.

Learn how to optimize for the Time to First Byte metric.

An in-depth course on images for the web.

Optimized images improve page load time and user satisfaction. This tool provides measurable and actionable info about how to go beyond simple compression.

You may not think about images as part of your web dev work, but they can affect your web app's performance more than any other part of your code.

Want to make your website faster? In this article, we'll show you three ways to perform a WordPress performance audit!

Treo makes it easy to track your site's web performance, test new features, and benchmark against competitors.

Crazed developer attempts real ecommerce without front-end JavaScript to prove that y’all playin’

How we optimized full-screen images for Rijksmuseum’s new story platform by realizing a 50-70% savings in total data transferred to the user.

Configuring aggressive page caching rules gives your WordPress site almost all the benefits of a static site without the downsides.

Speed up your site by learning how to remove unused CSS and JavaScript code from your WordPress website manually and via plugin.

Happy 25th birthday CSS! Yes, today marks 25th year of CSS' existence. Source. Contrary to what some may have you believe, CSS is not the worst. CSS is lovely, CSS is empowering, CSS is... well, here to stay. Unfortunately many a web developer (this author included) don't bother to properly learn

Understand what Core Web Vitals are and why you should be tracking them.

Here's how I approach reducing the impact that 3rd-party tags can have on site speed

Images have also been a key part of the web. They communicate ideas instantly, but they are also a lot heavier than text to load. This means that it’s essential to get loading and displaying them right, if you want to give your users a fantastic first impression. An excerpt from [Addy's new book](https://www.smashingmagazine.com/2021/04/image-optimization-pre-release/) (also, check a [free PDF preview](http://provide.smashingmagazine.com/eBooks/image-optimization-sample-chapter.pdf)).

How are Core Web Vitals measured? How do you know your fixes have had the desired effect and when will you see the results in Google Search Console? Let’s figure it out.

Yellow Lab Tools is a free online web performance analyzer. It audits a webpage for performance and front-end quality issues. And it's open-source!

Publishers scramble to fix Core Web Vitals while WordPress, plugin and theme developers seemingly decline to address those needs

Google Core Web Vitals will soon become a ranking factor. In this post, we'll explain what this feature includes and how to optimize for it!

Cumulative Layout Shift (CLS) Visualiser.

Third party manager built for speed. Run as many third parties as you need without slowing down your website.

Today, we are announcing a new service to serve more than just the static content of your website with the Automatic Platform Optimization (APO) service. With this launch, we are supporting WordPress, the most popular website hosting solution serving 38% of all websites.

One of the biggest causes of layout shifts for my clients is late-loading web fonts, let's look at how to optimise them!

In this post I'll outline 8 image loading optimization techniques to minimize both the bandwidth used for loading images on the web and the...

Go ask Google. You’ll find a bunch of articles telling you that 2–5 seconds does the trick. But what makes 2–5 seconds the prescribed…

Site speed refers to how quickly a browser can load webpages from a given site. Learn about website speed tests and how site speed affects conversion rates.

Overall results are not surprising but we learn about some interesting correlations by digging deeper into the data.