Using the native HTML disclosure widget for a burger menu is so enticing. Unfortunately, the details/summary elements come with accessibility issues, so it's not an inclusive solution.
Progressive enhancement or a great Cumulative Layout Shift metric score? Why not both?
Font subsetting allows you to split a font's characters (letters, numbers, symbols, etc.) into separate files so your visitors only download what they need. There are two main subsetting strategies that have different advantages depending on the type of site you're building.
When I started giving talks about SVG back in 2016, I'd occasionally hear a question I never had a great answer for: What if you have a lot of icons on a page?
Lighthouse Parade is a Node.js command line tool that crawls a domain and gathers lighthouse performance data for every page. With a single command, the tool will crawl an entire site, run a Lighthouse report for each page, and then output a spreadsheet with the aggregated data. Each row in the generated spreadsheet is a page on the site, and each individual performance metric is a column. This is convenient for high-level analysis because you can sort the rows by whichever metric you are analyzing.
Website speed and performance are a question of equity. Fast and lightweight sites mean that everyone can access your content equally. It’s not only an economic imperative; it’s a moral imperative.
I recently found myself racing to fill out Chipotle’s online order form before my mother could find her credit card. In the process, I discovered a bug that could cost Chipotle $4.4 million annually. My…
What Progressive Web Apps features should we expect Apple to support?
Apple has started development of service workers—the key technology powering Progressive Web Apps.