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Web Performance Calendar


The Web Performance Calendar just started up again this year. The first two posts so far are about, well, performance! First up, Rick Viscomi writes about the mythical “fast” web page: How you approach measuring a web page’s performance can tell you whether it’s built for speed or whether it feels...

Painting With the Web


Matthias Ott, comparing how painter Gerhard Richter paints (do stuff, step back, take a look) to what can be the website building process and what can wreck it: […] this reminds me of designing and building for the Web: The unpredictability, the peculiarities of the material,...

The Core Web Vitals hype train


Some baby bear thinking from Katie Sylor-Miller: my excitement for Core Web Vitals is tempered with a healthy skepticism. I’m not yet convinced that Largest Contentful Paint (LCP), First Input Delay (FID), and Cumulative Layout Shift (CLS) are the right metrics that all sites should...

Firefox 83


There’s a small line in the changelog that is is big news for CSS: We’ve added support for CSS Conic Gradients (bug 1632351) and (bug 1175958). 🎉🎉🎉 Conic gradients are circular, just like their radial counterpart, but place color stops...

Measuring Core Web Vitals with Sentry


Chris made a few notes about Core Web Vitals the other day, explaining why measuring these performance metrics are so gosh darn important: I still think the Google-devised Core Web Vitals are smart. When I first got into caring about performance, it was all: reduce requests! cache things! Make...

ARIA in CSS


Jeremey reacting to Sara’s tweet, about using [aria-*] selectors instead of classes when the styling you are applying is directly related to the ARIA state. … this is my preferred way of hooking up CSS and JavaScript interactions. Here’s [an] old CodePen where you can see...

Bidirectional scrolling: what’s not to like?


Some baby bear thinking from Adam Silver. Too hot: [On horizontal scrolling, like Netflix] This pattern is accessible, responsive and consistent across screen sizes. And it’s pretty easy to implement. Too cold: That’s a lot of pros for a pattern that in reality has some critical...

More People Dipping Toes Into Web Monetization


Léonie Watson: I do think that Coil and Web Monetization are at the vanguard of a quiet revolution. Here’s me when I’m visiting Léonie’s site: Enjoy the pennies! My Coil subscription ($5/month) doles out money to sites I visit that have monetization set up and installed. Other...

The CSS Custom Property Toggle Trick


Back in July 2020, I got an email from James0x57 (I always try to refer to people by their name, but I think I get the sense they prefer to go by screen name) that says: The entire world of branching conditional logic and bulk feature toggling for custom CSS properties is possible and only exists...

More on content-visibility


Back in August 2020, when the content-visiblity property in CSS trickled its way into Chrome browsers, Una Kravets and Vladimir Levin wrote about it and we covered it. The weirdest part is that to get the performance value out of it, you pair it with contain-intrinsic-size on these big chunks...

xm


This is a neat little HTML preprocessor from Giuseppe Gurgone. It has very few features, but one of them is HTML includes, which is something I continue to be baffled that HTML doesn’t support natively. There are loads of ways to handle it. I think it’s silly that it’s been...

The failed promise of Web Components


Lea has some words: Perusing the components on webcomponents.org fills me with anxiety, and I’m perfectly comfortable writing JS — I write JS for a living! What hope do those who can’t write JS have? Using a custom element from the directory often needs to be preceded by a ritual of...

People Problems


Just the other day, Jeremy Keith wrote that problems with performance work isn’t only a matter of optimization and fixing code, but also tackling people problems: It struck me that there’s a continuum of performance challenges. On one end of the continuum, you’ve got technical issues. These can...

There’s a good reason why experienced devs say “it depends” so often


I feel like Jerod Santo really understood what I was trying to say in Weaved Webs, when I was trying to cover the emerging WordPress (“versus”) Jamstack conversation. If you asked El Duderino if you should go Jamstack he’d probably tell you, “It’s a complicated case. Lotta ins. Lotta...

POW


As a connoisseur of web trickery, this is a must share: POW stands for Packaged Offline/online Webpage. It turns out the png format includes ways to save metadata alongside the image file. A powfile has a metadata entry that contains a zip file that contains a full website. So a PNG file...

Thinking About Power Usage and Websites


Gerry McGovern asked if I had any insight into energy consumption and websites. He has a book, after all, about the digital costs on the planet. He was wondering about the specifics of web tech, like… If you do this in HTML it will consume 3× energy but if you do it in JavaScript it will...

Vue 3


It’s out! Congrats to the Vue team for getting it done, I know it was a massive effort and a long time coming. All new docs, as well. I like it’s still a priority that Vue can be used with just a <script tag with no build process at all. But it’s ready for build processes...

Optimizing CSS for faster page loads


A straightforward post with some perf data from Tomas Pustelnik. It’s a good reminder that CSS is a crucial part of thinking web performance, and for a huge reason: Any time [the browser] encounters any external resource (CSS, JS, images, etc.) it will assign it a download priority...

Inclusive Design 24


Totally free. No sign-up. No registration. All sessions are streamed live and publicly on the Inclusive Design 24 YouTube channel – see the entire playlist for the event. Quite the lineup. I’ve got a couple of other accessibility links burning a hole in my pocket as well: Matt Stobbs:...

What is the Value of Browser Diversity?


In 2018, Rachel Nabors made the point that browser diversity is similar to biological ecosystem diversity. There are literal advantages to more diversity. That article was before the Edge engines were shut, and now the big shakeups at Mozilla have the topic of browser diversity on people’s...

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