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Continuous Performance Analysis with Lighthouse CI and GitHub Actions
23.12.2020
Lighthouse is a free and open-source tool for assessing your website’s performance, accessibility, progressive web app metrics, SEO, and more. The easiest way to use it is through the Chrome DevTools panel. Once you open the DevTools, you will see a “Lighthouse” tab. Clicking the “Generate report”...
Enforcing performance budgets with webpack
18.9.2020
As you probably know, a single monolithic JavaScript bundle — once a best practice — is no longer the way to go for modern web applications. Research has shown that larger bundles increase memory usage and CPU costs, especially on mid-range and low-end mobile devices.
webpack has a lot of features...
A Look at JAMstack’s Speed, By the Numbers
1.11.2019
People say JAMstack sites are fast — let’s find out why by looking at real performance metrics! We’ll cover common metrics, like Time to First Byte (TTFB) among others, then compare data across a wide section of sites to see how different ways to slice those sites up compare.
First, I’d like...
Your first performance budget with Lighthouse
7.6.2019
Ire Aderinokun writes about a new way to set a performance budget (and stick to it) with Lighthouse, Google’s suite of tools that help developers see how performant and accessible their websites are:
Until recently, I also hadn't setup an official performance budget and enforced it. This isn’t...
How to Worry About npm Package Weight
18.12.2018
It's all too easy to go crazy with the imports and end up with megabytes upon megabytes of JavaScript. It can be a problem as that weight burdens each and every visitor from our site, very possibly delaying or stopping them from doing what they came to do on the site. Bad for them, worse for you....