The Container Timing API is officially moving to a Chromium Origin Trial (M148 to M153)! 🚀.
Read my new blog post for more info and registration details: ✍️ https://blogs.igalia.com/dape/2026/04/14/container-timing-moving-to-origin-trial/.
I will also be presenting a year-in-review lightning talk of the work in Container Timing: 🗣️ April 21st in #BlinkOn 21. I won’t be on-site this year, but I’ll be active on the conference Slack. Catch the talk and let’s connect there!
The March data for Shopify theme performance is now live - see how Horizon performs on Core Web Vitals and check out your own theme's performance:
https://themevitals.com/newsletter/2026-04/
900 quid iPhone? £40 pm mobile bill? Still struggling load that photo your mum sent you of her new border collie, despite being in the city & near a phone mast?
Martin Owens from #SYMAC / #SYDIT may have some answers, thanks to his plucky team of bin lorries 🚛 & the Streetwave Mobile Coverage Map.
What does this mean for us as people building for the web? Is #webperf important in an age of 5G?
🎟️ https://www.meetup.com/front-end-sheffield/events/313962953/
#Development #Pitfalls
CSS ‘font-family’ fallbacks can trick you · Prevent visual glitches with complete font stacks https://ilo.im/16c2pg
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#CSS #Fonts #Fallbacks #LayoutShifts #CLS #WebVitals #Metrics #WebPerf #WebDev #Frontend
#Development #Comparisons
Base64 is fast now, actually · The surprising speed of native base64 encoding https://ilo.im/16bzcf
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#Encoding #Base64 #UTF16 #JavaScript #Browsers #NodeJS #WebPerf #WebDev #Frontend #Backend
3 ways to manage a web server:
🏗️ Docker: Abstraction & CI/CD. Best for scaling microservices in enterprise teams.
🖱️ Panels: Simplicity & GUIs. For those who prefer a visual, hands-off approach.
🚀 Native CLI: For the purists who demand bare-metal performance, zero overhead, and total control over the OS.
All 3 are valid, but if you want to squeeze every drop of power from your server, #Webinoly is your best ally. ⌨️⚡
#SelfHosted #WebPerf #Nginx #Linux #SysAdmin #OpenSource #BareMetal #PHP
Web Performance advice changes over time:
Web Performance Tuning by Patrick Killelea (1998) recommends pre-starting Java in Netscape, 68K emulation for the Macintosh, and whether to get an internal or external modem.
High Performance Web Sites, by Steve Souders (2007) recommends CSS sprites, how to configure mod_gzip, and mentions CGI scripts.
What advice will raise eyebrows in 2030?
…It sure looks like one of the biggest capitalist leviathans on planet Earth that has been telling us all to keep our sites light…
and if we don’t, we get put on the page ranking naughty step…
and is now exploring the on-the-fly rendering of alternative pages that don’t satisfy their ‘performance’ insights (https://www.seroundtable.com/google-patent-ai-generated-pages-search-41010.html)
…can serve as many exabytes of data as it likes.
Just so long as everything is *fast*. Cos who doesn’t love #webPerf overshoot?
#Development #Techniques
Preloading images with JavaScript · Strengths and weaknesses of different techniques https://ilo.im/16bsum
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#Preloading #Images #Cache #APIs #WebPerf #WebDev #Frontend #HTML #JavaScript
José Dapena Paz
Sia Karamalegos
Front End Sheffield
Inautilo
Webinoly
Leon Brocard
Jonathan Schofield
Velox Studio