Writing

My most recent writing on sustainable web development, performance tips for websites and apps, as well as a few other musings.

Illustration of speed dial adjusted to the right, with rocket taking off on mobile and laptop in the background.

Testing a web page with PageSpeed Insights

PageSpeed Insights is a free performance testing tool by Google. In this post we’ll cover the basics of testing a web page with PageSpeed Insights, as well as how to understand the different test results.

Female protestor holding up cardboard sign with the words 'Less is more. It's eco-logical' painted on it.

“Use less. Use green. Buy green.”

By using less power, using green power, and buying from green suppliers businesses and individuals alike can reduce their carbon footprint. How would we go about applying this same thinking to website performance and sustainability?

Colourful video static

Approaches to video on the web

Video is becoming an increasingly critical part of the online experience. So how can you include video on a web page without hurting Core Web Vitals, performance or digital sustainability?

Website performance charts for several websites.

Using Treo's free Site Speed Test

In this post we'll look at how you can use Treo's free Site Speed Report to better understand real-user performance on your site, and make the case for performance in your organisation.

Illustration of two people moving charts on a monitor.

Core Web Vitals meets sustainability

Everyone wants to make sure their website's Core Web Vitals are up to standard. What if we told you that some of the very things you'll do to improve your site's Core Web Vitals can also help make it more sustainable!

The user interface of the Webflow site builder.

Improving Webflow Core Web Vitals

Webflow makes it easy for content creators and marketing teams to build stylish websites fast. But this can come with the risk to publishing a site with poor Core Web Vitals. This post covers some of the things to look out for when building with Webflow.

COP26 banner with purple globe. Glasgow COP26, in partnership with Italy.

COP26.org: A quick sustainability check

With COP26 about to take place in Glasgow, let's take a quick look at how the COP26 homepage holds up in terms digital sustainability. What's its carbon footprint, and can it be improved?

Close-up photo of iWatch measuring health and fitness

Tracking real Core Web Vitals scores

There are a few options when it comes to keeping track of your website's real world Core Web Vitals scores. In this post I'll cover some of the services or tools you can use, and some things to be aware of.

Inline skates on a wooden floor.

Using Cloudflare Workers to inline external CSS

Loading CSS from external files can slow down your site's initial paint, potentially hitting your Core Web Vitals in the process. In this short post we'll look at how using to use a Cloudflare Worker to inline the content of external CSS files.

Wind turbines standing in a grass field in Spain.

Reducing website carbon emissions

As our thirst for data, connectivity, and content grows, so does the portion of global carbon emissions attributed to the internet. In this post, we'll take a look at the steps frontend developers can take to make sites more efficient and better for the planet.