Chrome Dev Rel helping make the web go faster!. All opinions my own. I’m primarily on 🦋 these days.
Cork, Ireland
Joined July 2015
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Barry Pollard retweeted
Track exactly when blocks of content load in our new origin trial → goo.gle/49nSTL9
Container Timing extends Element Timing so you can measure when entire components like widgets or sidebars are available to your users.
Barry Pollard retweeted
Alright, I wrote it. domenic.me/streams-standard/
Very tempted to write up a response to blog.cloudflare.com/a-better…... It has some good points but a lot of questionable ones and some that are just confused and wrong. But I'm not sure I want to get pulled back into that world.
Barry Pollard retweeted
Web Performance Calendar day 23 with @tunetheweb on configuring caches to ignore non-content-affecting URL params and reclaim performance. No more of this query string = cache miss nonsense.
calendar.perfplanet.com/2025…
Barry Pollard retweeted
Your browser’s already loading the next page… before you click it.
Faster loads by predicting what you’ll do next. @tunetheweb shares the magic behind Chrome’s new Speculation Rules API.
YT: buff.ly/Z5ma0cl
Apple: buff.ly/ezPrW1Q
Spotify: buff.ly/woBqWvk
Barry Pollard retweeted
New in @ChromeDevTools: Annotate performance findings with Gemini!
You can now ask Gemini to explain performance traces. Specifically you can generate annotations about events in the performance trace. This is a total game-changer.
Double-click an event in the Main track, then click Generate label next to the input field. Gemini can suggest a label based on the stack trace and context.
Try it out and let us know what you think!
Barry Pollard retweeted
Learn about @ChromeDevTools🔧 and all the improvements they've made over the past year to help you develop, debug 🐞, and optimize your website!
Catch the talk by @tunetheweb & Ewa Gasperowicz - they're inviting you to join their session🙌
Barry Pollard retweeted
😍 Catch @tunetheweb's talk at JSNation!
"Supercharge Your Debugging With the New Features in Chrome Devtools"
🌷June 12 & 16, Amsterdam & Online
Barry Pollard retweeted
On the heels of @felixarntz's WP 6.8 Dev Note yesterday and @tunetheweb's implementation guide posted today, I wrote up how to extend Speculative Loading in WordPress to enable more instant page loads: weston.ruter.net/2025/03/07/… – at Portland, OR
Barry Pollard retweeted
Unlock faster page loads using Chrome's Speculation Rules API.
Discover how to prefetch and prerender pages based on user interaction, and debug the process with DevTools.
Dive in → goo.gle/3YNVOXy
#DevToolsTips
ALT DevTools Tips: Debugging speculative navigations for faster page loads The Speculation Rules API lets you implement a near-instant page load based on speculation rules that you define. This lets your website prefetch and prerender most navigated-to pages. Watch the video and check out this demo to learn how to: Inspect speculations, their rules, and statuses in Application > Background services > Speculative loads. Switch between renders through the drop-down menu in the action bar at the top and inspect the renders using all DevTools panels. Live trace prerender status.
Barry Pollard retweeted
🚀 How QuintoAndar reduced INP by 80%, increasing conversions by 36%
We've just published a new article detailing all the work we did in web performance and react optimizations at @quintoandar. I'm really proud of this effort and learned a lot.
→ link: web.dev/case-studies/quintoa…
Barry Pollard retweeted
We're shipping this in Chrome 133 (stable on Feb 4th)! Read more in our latest blog post: developer.chrome.com/blog/mo…
Huge thx to @nomsternom for help bringing this to life, partners & frameworks that helped test it, and the spec ecosystem for working with us to get it standardized!
We've been working hard on the experimental Node#moveBefore() API to preserve DOM state across element moves & reparenting.
Here's a demo working with CSS animations & iframes! Try it out in Chrome Canary at state-preserving-atomic-move…. We'd love your feedback!
cc: @nomsternom
Barry Pollard retweeted
Don't obsess over Core Web Vitals, but if you have a serious performance issue, definitely address it. If you're working on improving a big LCP issue, then this is for you. Google's @tunetheweb provided a long thread with info about debugging LCP issues. Good stuff. searchenginejournal.com/goog… via @martinibuster
Barry Pollard retweeted
Want to know if your redesign actually improved user experience? See real-world performance data with Chrome UX Report! Compare your production (old) and new designs to measure the impact.
@tunetheweb #webperf #ChromeDevTools
Barry Pollard retweeted
🎙️ 📊 [AHEM] ✨ NUMBERS ON THE BOARD✨
🔹 83 TB of data
🔹 21 Chapters
🔹 17 million sites
🔹 10 contributors
🔹 1 host
🔸 It's all just a few days away. Would you pls join us Tuesday Dec 10th as we discuss the findings from @HTTPArchive 's WEB ALMANAC.
✨ THE WEB ALMANAC LIVE! ✨
Authors will share discoveries about the web as we know it, and much we didn't know. We'll be taking some audience q?s both about the project and the data we're sharing.
📆 Dec 10th, 13h EST/NY
🌍 everytimezone.com/s/c72fed12
🔸 Of course, you can read the Web Almanac as well:
almanac.httparchive.org/en/2…
ALT a white graphic feature 10 avatars of people, with the following info: THE WEB ALMANAC LIVE STREAM! Web Almanac, By HTTP Archive ONLINE, DECEMBER 10, TUESDAY time 13h EST, 10h PST, 19h CET. with the authors!
Barry Pollard retweeted
Performance you say? Join Captain Speedy to learn how to pinpoint & fix performance issues with cool insights in #ChromeDevTools. Let’s dive in! 📺 youtu.be/7A70hBrPL4I
@tunetheweb @jecfish @malchata #DevToolsTips #webperf
Barry Pollard retweeted
🔮 Another @csswizardry joint. This one is a good one! csswizardry.com/2024/12/a-la…
Barry Pollard retweeted
Web devs, don’t settle for fast—make your web pages load instantly by prerendering using the Speculation Rules API 🏎️💨.
Learn how add it to your site with a simple bit of JSON ➡️ goo.gle/47eJeEu
Barry Pollard retweeted
Well, it works (fast) on your machine, not mine @tunetheweb !
Watch our latest video to learn how to monitor Core Web Vitals with #ChromeDevTools.
📺 youtu.be/M5oe010pYbA?feature…
Barry Pollard retweeted
2 neat features to improve network debugging in the Performance panel. #ChromeDevTools
💈 Hover to view critical network information upfront
🕵♀️ Click Cmd + F to search
Less context switching, better focus. @tunetheweb
Barry Pollard retweeted
Hey @PerfNowConf here are my slides. Thank you for listening
slideshare.net/slideshow/thi…
#perfnow #webperf
