Author | Lightnews

Cliff Crocker @cliffcrocker.bsky.social · 1d

Seeing everyone this week at #perfnow was a gift. So many great humans focused on an important cause. Can’t wait for next year!

Woman on stage presenting a slide reading Pragmagical with a cartoon unicorn.

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Cliff Crocker @cliffcrocker.bsky.social · 1d

Thanks to my favorite pirate!

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Tim Kadlec @tkadlec.bsky.social · 2d

Always, always happy to see @yoav.ws get a shout-out. So much incredible work has happened because of him. Most recent example—speculation rules in WebKit. #perfnow

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Cliff Crocker @cliffcrocker.bsky.social · 2d

@mmocny.com doing an excellent job of visually explaining how interactions are measured between an MPA and a SPA. #perfnow

Michael on stage presenting a web page highlighting various interaction elements

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Joan León @nucliweb.net · 2d

Huge thanks to @andydavies.me for mentioning the LoAF Helpers WebPerf Snippet at @perfnow.nl!

Honored to be part of the amazing Web Performance community 🫶

🔗 webperf-snippets.nucliweb.net/Interaction/...

#WebPerf #PerfNow #Performance #LoAF #INP #CoreWebVitals

A speaker stands on stage at the Performance.now() 2025 conference, presenting a slide titled “LoAF Helpers: Advanced Debugging in DevTools.” The slide displays details about WebPerf Snippets and a highlighted URL link. The audience is seated in front of the stage, watching the presentation.

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Cliff Crocker @cliffcrocker.bsky.social · 2d

So fortunate to work with this guy. Hard-pressed to find anyone with more knowledge on LoAF than @andydavies.me. That shirt though… #perfnow

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Cliff Crocker @cliffcrocker.bsky.social · 2d

@tkadlec.bsky.social is not only an ambassador of user experience he’s also the king of bad dad jokes. #perfnow #perfdad

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Tammy Everts 🍁 @tammyeverts.com · 3d

Good morning and happy Halloween, #PerfNow friends! So excited about Day 2!

If you’d like to chat about #webperf and #ux, come chat with @andydavies.me and @cliffcrocker.bsky.social and me from Team @speedcurve.com.

And I still have plenty of Halloween goodies! Trick or treat!

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Riccardo Margiotta @riccardomargiotta.co.uk · 4d

Google's performance thresholds are not your thresholds. Remember that Core Web Vitals are certainly a good starting point, but not the end goal. Don't aim for somebody else's target, correlate with your own real user conversions and set your own goals.

@tammyeverts.com #PerfNow #webperf

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Cliff Crocker @cliffcrocker.bsky.social · 3d

Loving the creativity @inesakrap.bsky.social is bringing to her talk on building a sustainable, fast web. #perfnow

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Cliff Crocker @cliffcrocker.bsky.social · 3d

We’ve found several reasons for this including bots, sessions that strictly browse (no checkout pages), error pages, thumbnail previews, and more.

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Tammy Everts 🍁 @tammyeverts.com · 3d

“As performance-minded technologists, you are in a position to do something about accessibility.” — @marcysutton.com at #PerfNow

marcysutton.com/accessibilit...

Accessibility and Performance | MarcySutton.com

Musings about frontend code, accessibility, web development consulting, and life.

marcysutton.com

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Tammy Everts 🍁 @tammyeverts.com · 3d

And last (but definitely not least) here’s @cliffcrocker.bsky.social’s super-interesting analysis of INP and its correlation with UX and business metrics. #PerfNow

www.speedcurve.com/blog/INP-use...

SpeedCurve | Does Interaction to Next Paint actually correlate to user behavior?

If you make INP faster, will it actually improve the user experience... and help your business? Here's our analysis.

www.speedcurve.com

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Cliff Crocker @cliffcrocker.bsky.social · 4d

@tammyeverts.com kicking off @perfnow.nl with a focus on what really matters. Users.

Tammy presenting on stage at perfnow discussing how metrics are not equal to feelings.

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Cliff Crocker @cliffcrocker.bsky.social · 4d

Great start to my favorite week with our first in person #RUMCG meeting before @perfnow.nl
What’s RUMCG? www.w3.org/community/ru...

Full room of attendees at the RUMCG meetup

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Cliff Crocker @cliffcrocker.bsky.social · 5d

Amazing!

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The Onion @theonion.com · 9d

Trump Touts Productive Call With Putin About Ballroom Sconces https://theonion.com/trump-touts-productive-call-with-putin-about-ballroom-sconces/

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Sherrilyn Ifill @sifill.bsky.social · 9d

So they didn’t like the ad. Let’s just post Reagan’s 5 min speech against tariffs as it appears on YouTube.

Over and over. On all platforms (some of y’all are still on X).

*1981 Sherrilyn horrified by 2025 Sherrilyn saying “let’s post Reagan’s speech.”

youtu.be/5t5QK03KXPc

President Reagan's Radio Address on Free and Fair Trade on April 25, 1987

YouTube video by Reagan Library

youtu.be

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Kevin M. Kruse @kevinmkruse.bsky.social · 10d

Over the past week, the president said the DOJ should pay him a quarter billion dollars, bulldozed half the White House to build himself a gaudy ballroom, bragged about murdering civilians in international waters, pardoned some more criminals, directed federal prosecutors to indict his opponents ...

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Jake Archibald @jakearchibald.com · 18d

We've already had a great response to this. Thank you everyone who took the time to make a ranking - I know there's a lot of proposals.

If you haven't, there's still time!

bsky.app/profile/fire...

firefoxdevtools.bsky.social @firefoxdevtools.bsky.social · 24d

As an experiment, we (the Firefox team) wanted to try a new way to get feedback on which Interop proposals matter most.

So, here's a web app where you can rank the proposals you care about, giving us data we can use when reviewing which ones to champion.

interop-rank.jakearchibald.com

Interop Feature Ranking

Rank the web platform features you care most about

interop-rank.jakearchibald.com

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Ryan Townsend @twnsnd.com · 18d

Safari TP 230 includes support for Largest Contentful Paint 🙌 #webperf

IntentToShip @intenttoship.dev · 18d

Webkit: Release Notes for Safari Technology Preview 230

webkit.org

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performance.now() conference @perfnow.nl · 20d

OK, we're down to our last tickets. There's still room for people to join performance.now() on 30th and 31st of October (in two weeks and a bit), but it's time to decide.

perfnow.nl
Last tickets at perfnow-2025.eventstack.shop

performance.now(); 30th and 31st of October, Amsterdam

On 30th and 31st of October, 2025, the sixth edition of performance.now() will take place in Amsterdam—a single track conference, covering today’s most important web performance insights.

perfnow.nl

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Tammy Everts 🍁 @tammyeverts.com · 25d

I've been exploring @speedcurve.com's new Vitals Overview dashboard with some customers for a week or so now, and all I can say is WOW.

Not only is it fun to play with, it also halves the time it takes to investigate #webperf and #ux issues.

👉 Take a quick tour: www.speedcurve.com/blog/a-smart...

SpeedCurve | NEW! A smarter way to spot performance issues

We’re excited to announce the launch of the Vitals Overview dashboard in SpeedCurve. It's your new starting point for exploring the performance of your site.

www.speedcurve.com

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Alejandra Caraballo @esqueer.net · Sep 16

The trans partner of Tyler Robinson had no knowledge about it and was told to delete messages but didn't and instead turned them immediately over to the police and cooperated.

Yet, the right is demonizing her and blame everything on trans people despite the trans person here doing the right thing.

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Sia Karamalegos @sia.codes · Aug 18

Need help with web performance optimization? Have a tricky new build you're working on?

I have two projects wrapping up and am available for new ones starting next week.

sia.codes/services/

Services

Failing your Core Web Vitals? Losing conversions due to poor user experience from slow loading, delayed interactions, or shifting content? I’m here to help.

sia.codes

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