“Added preview support for Event Timing API (Interaction to Next Paint)” #webperf #CoreWebVitals

It's this kind of nice today!

good morning DOM

📢 I'm beyond excited to announce:✨ H2 MEETUP ✨ This is the evolution of the modern web event, and this is just the start. And what a start this will be. This will also be the Toronto REMIX RUN Jam pre-event. Limited RSVP. Act fast 🔗 bit.ly/h2-meetup-001

Off to get some coffee, and coming back with a few announcements! BRB.

good morning DOM.

✨ SPDY STREAM 012 ✨ A recent shot of @scottjehl.com of Squarespace, working to maintaining performance on the large-scale website builder. We'll hear about strategies employed to optimize user-created sites. Join us tomorrow! 📆 Wed Oct 1, 2025 ⏰ 2pm EDT, 11am PDT 🔗 bit.ly/spdy-stream-012

☕️ With so many Starbucks closing, where’s everyone going to go for a bathroom break?

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Just found out about my next trip to 🇪🇺: I need to enable JavaScript.

SVGOMG has been updated to use SVGO 4! (thanks Adrien Crivelli!) This is the URL for SVGOMG. Unfortunately someone maintains a fork with ads, so, err, don't use that 😀 jakearchibald.github.io/svgomg/

Got yet another notice of a meetup closing this weekend. I've been saying the meetup is ripe for a transformation, if not a radical renewal. Stay tuned...

good morning DOM

Someone sent me this link, and the only person I though of (outside of myself since I was hungry) was @seldo.com : www.instagram.com/reel/DNJv8hS...

I was looking at some older emails (I have kept the vast majority of email lists) and this came up: 10 yrs ago (523 weeks + 5 days to be correct) @developer.chrome.com www.youtube.com/watch?v=SkN5...

A gorgeous day indeed. 🍁

🏃🏾‍♂️ So yesterday. After taking 4 days off, was due for a long run and I had no time trial in mind, but something to fit the fall mood. File this under 👏🏾. My fitness is unquestionably there, had a great summer as I look fwd to fall. NGL, this felt like easy work #RunnersInTech #devsWhoRun

good morning DOMingo

🏃🏾‍♂️ a great feeling today to be back on my feet — after 4 days off. More on that tomorrow…. But it was another gorgeous day and it certainly doesn’t feel cool like fall, although the colorful 🌳 and 🍁 on the ground say otherwise.

good morning DOM

I have never heard of SkyCouch™️ before. ✈️ 💺 🛋️ youtu.be/q6F3idp9zFw?...

Took this show in fall of 2018 during the Cali wildfires. I miss this location. @brandonkelly.io should recognize it.

☕️ futurism.com/vibe-code-re...

✨ SPDY STREAM 012 ✨ 📢 We're pleased to welcome @scottjehl.com of Squarespace, who will discuss the challenges of maintaining a performant, large-scale website builder whilst striving for splendid #CoreWebVitals. Join us! 📅 Wednesday Oct 1 2025 ⏰ 2pm EDT, 11am PDT 🔗 bit.ly/spdy-stream-012

A huge thanks to both @krzksz.bsky.social and @yoav.ws for yesterday's insightful ✨ SPDY STREAM ✨on how Shopify rolled out Speculation Rules to their merchants and the details in between now in the last time we spoke to them both. The episode will be live next week.

good morning DOM

LOR DIR EALLYH ATE TYP OSS OM UCH!

This has come up a few times in the last 2-3 weeks.

📢 This is happening at the top of the hour. Join us!

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Me earlier today, streaming in a waiting room. Hello @bradfrost.com !

[E X H A L E S]

performance.now() is coming! LCP and INP measure loading and responsiveness of entire pages – but same-document soft navigations were much harder to measure. Until now! @mmocny.com will explain how new Performance APIs make this possible. perfnow.nl/speakers.html#michal

🎂 17yrs ago, Android 1.0 was launched. Shout out if you're team green bubble! 🟢🫧 🙃 The Android fragmentation is just bananas. I was just looking at the @rumarchive.com, and according to their data: 🔸 over 2800 different Android models x'ing their network, brands I've never heard of in my life.

Announcing our public preview of Chrome DevTools MCP! Experience the full power of DevTools in your AI coding agent→ goo.gle/4pDE6Tk With Chrome DevTools MCP, your AI agent can run performance traces, inspect the DOM, & perform real-time debugging of your web pages.

good morning DOM

Tylenol parent company stock plunging, as they listen to the US President, eMD say on live TV to not take it.

✨ SPDY STREAM 011 ✨ w/ @krzksz.bsky.social & @yoav.ws After deploying the SPECULATION RULES API to their merchants, they join me this week to discuss the experience and their findings. Join us! (updated day and time) 📆 Thursday Sept 25 ⏰ 11am EST, 5pm CEST 🔗 bit.ly/spdy-stream-011

Grand closing, grand RE-opening.

We're excited to be starting a new series on the Winging It channel called CSS Tips & Tricks! These are short videos each focused on one specific CSS feature from @miriam.codes, @stacykvernmo.com, and @jamessw.com. Subscribe for updates. youtube.com/playlist?list=PL4jAKUtAhpHlOm3Lfv83ZHpfdJ4zHCDyv

good morning DOM

I recall thinking about this some yrs ago. Imagine: 🔸 you authored a (great) web product like a framework or run a CDN and you find out an org you're not supportive of has a web team that uses it. What's your next move? It appears that NextJS, Tailwind and more are used by the 🇺🇸 admin...

🍁 it's happening. One of my fave times of year, and the leaves are beginning their colourful transformation on this last day of summer. Had a great long run this weekend and got to see it right before my eyes... ♥️ #devsWhoRun #RunnersInTech

Sunday morning drive.

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Wowsers. H-1B under attack www.reuters.com/business/med...

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came out for some ☕️, 🖼️ + 🛜 ==== SUMMARY ==== Uplink capacity: 229.105 Mbps Downlink capacity: 347.495 Mbps Uplink Responsiveness: High (10.959ms | 5475 RPM) Downlink Responsiveness: Low (392.157ms | 153 RPM) Idle Latency: 10.250ms | 6000 RPM

✨ SPDY STREAM 010 ✨ in ~100s: How did you get into Web Performance? @kurtextrem.de's professional focus on web performance is rooted in personal experiences. He used low-end devices, which provided firsthand insight into the challenges of a slow web. These memories informed his work as an engineer

In a recent conversation with @henrihelvetica.bsky.social, he mentioned attending meetups & conferences is like a cheat code, and I can't agree more. Conferences in particular can be unaffordable for many, and one thing he brought up that I hadn't even considered before is volunteering at them.