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PerformanceObserver @performanceobserver.dev · 09/07/2026

Videos from our meetup yesterday are up! @sergeyche.dev discussed why the speed of user experience matters and the UX Speed Museum. Almudena explored the environmental cost of Generative AI, sharing practical strategies. #webperf www.youtube.com/playlist?lis...

youtube.com

Episode 12 | PerformanceObserver - YouTube

In this episode, Sergey will discuss why the speed of user experience matters, walking us through the evolution of Core Web Vitals and unveiling the UX Speed...

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PerformanceObserver @performanceobserver.dev · 02/07/2026

Join us next week for the next meetup! All details at performanceobserver.dev #webperf

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Reposted by PerformanceObserver

Estela Franco @guaca.bsky.social · 19/02/2026

Save the date! 🤩 The next @performanceobserver.dev will be on February 26 at 6:30 PM CET (12:30 PM ET / 9:30 AM PT) All the details and "add to calendar" links in performanceobserver.dev

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PerformanceObserver @performanceobserver.dev · 26/02/2026

Join us in a few hours! All details on the website...

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PerformanceObserver @performanceobserver.dev · 13/01/2026

Happy New Year, folks! The next PerformanceObserver will be in a few weeks on Jan 28 featuring Morgan Murrah and Robin Marx (@programmingart.bsky.social) ! Join us live for access to chat and Q&A - all details and add to calendar at: performanceobserver.dev #webperf

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

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PerformanceObserver @performanceobserver.dev · 17/11/2025

Reminder: our next meetup is this Wednesday! Join live for access to Q&A and general chat! #webperf

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PerformanceObserver @performanceobserver.dev · 10/11/2025

Episode 8 is next week on Nov 19! Come join us live for access to Q&A and general chat! We have @aarontgrogg.bsky.social talking about reducing JS workload and @mattzeunert.com walking through synthetic testing with DebugBear! #webperf All details and add-to-calendar at performanceobserver.dev

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

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Reposted by PerformanceObserver

Stoyan Stefanov @stoyan.me · 30/10/2025

Fellow #perfnow fellows, a reminder that PerfPlanet calendar is coming this December for another edition. And it needs YOU. Please ask if you have any contribution ideas or concerns calendar.perfplanet.com/contribute/

calendar.perfplanet.com

Contribute

Passionate about a topic? Working on a new tool? Have a technique you want to teach? Research you've done? Tell the web performance community! Send your articles to ssttoo@ymail.com. Please include: ...

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PerformanceObserver @performanceobserver.dev · 14/10/2025

Episode 7 is next week on Oct 23! Come join us live for access to Q&A and general chat! We have @stoyan.me talking about font fallbacks and layout shift plus some extra time for an open discussion! All details and add-to-calendar at performanceobserver.dev

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

052

PerformanceObserver @performanceobserver.dev · 18/09/2025

The videos from our last meetup are now live! In this episode, Tim Vereecke introduces us to UNO, the missing link in any TTFB analysis. Then, Julian Jandl walks us through a case study on how to overcome third-party challenges in large enterprises using Partytown. www.youtube.com/playlist?lis...

youtube.com

Episode 6 | PerformanceObserver - YouTube

In this episode, Tim Vereecke introduces us to UNO, the missing link in any TTFB analysis. Then, Julian Jandl walks us through a case study on how to overcom...

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Reposted by PerformanceObserver

Sia Karamalegos @sia.codes · 04/09/2025

Hey folks, I'm looking to schedule the next PerformanceObserver meetup and need some new CFP submissions. I have a few experienced #webperf speakers on there, but I like to break it up with either newer speakers or new-to-webperf speakers. performanceobserver.dev/call-for-pap...

performanceobserver.dev

Call for speakers | PerformanceObserver

Come speak at the PerformanceObserver virtual performance meetup! Speakers of all experience levels welcome.

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PerformanceObserver @performanceobserver.dev · 04/09/2025

Episode 6 will be September 16! In this episode, @timvereecke.bsky.social introduces us to UNO, the missing link in any TTFB analysis. Then, Julian Jandl walks us through a case study on how to overcome third-party challenges in large enterprises using Partytown. #webperf performanceobserver.dev

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

041

PerformanceObserver @performanceobserver.dev · 18/06/2025

We're live in 1 hour! In this episode we have Amrik Malhans walking us through the critical rendering path, and @sia.codes introducing us to using the public web performance data sets of HTTP Archive and CrUX. performanceobserver.dev

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

032

PerformanceObserver @performanceobserver.dev · 17/06/2025

Just a little over 24 hours away! Come join us!

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PerformanceObserver @performanceobserver.dev · 04/06/2025

The posted time was briefly incorrect, but it's fixed now!

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PerformanceObserver @performanceobserver.dev · 04/06/2025

Ep. 4 will be on June 18! We will have Amrik Malhans walking us through the critical rendering path, and Sia Karamalegos introducing us to using the public web performance data sets of HTTP Archive and CrUX. #webperf All details and sign up at performanceobserver.dev

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

133

PerformanceObserver @performanceobserver.dev · 30/04/2025

Ep. 3 will be on May 14! We will have Medhat Dawoud walking us through the process of building fast websites for everyone, and Amila Welihinda explaining how to profile JavaScript in production. #webperf Details at performanceobserver.dev

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

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Reposted by PerformanceObserver

Vinicius Dallacqua @webx.bsky.social · 20/03/2025

It was so much fun recording this talk! Thanks for having me @performanceobserver.dev !!

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PerformanceObserver @performanceobserver.dev · 27/03/2025

Thanks for speaking! We know it's a lot of work. ❤️

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PerformanceObserver @performanceobserver.dev · 20/03/2025

🎥 The videos from our last meetup are now live on our YouTube channel! Here's the playlist: www.youtube.com/playlist?lis... Big thanks to @keerthanak17.bsky.social and @webx.bsky.social for speaking! ❤️ #webperf

youtube.com

Episode 2 | PerformanceObserver - YouTube

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PerformanceObserver @performanceobserver.dev · 18/03/2025

Hey folks, here’s your reminder that PerformanceObserver is back with our second episode tomorrow! @webx.bsky.social s and @keerthanak17.bsky.social will talk about LoAF and designing for bad performance. All details and add to calendar at performanceobserver.dev #webperf

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

065

PerformanceObserver @performanceobserver.dev · 17/02/2025

Videos from our meetup are now posted! Here's the playlist: www.youtube.com/playlist?lis... #webperf

youtube.com

Episode 1 | Performance Observer - YouTube

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PerformanceObserver @performanceobserver.dev · 30/01/2025

If you're interested in how @sia.codes built themevitals.com, join the 11ty Meetup next week! It shows CrUX data aggregated and grouped by #Shopify theme. It's a completely server-rendered static site.

themevitals.com

Shopify Theme Vitals

Explore real-world Core Web Vitals performance data for popular Shopify themes.

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PerformanceObserver @performanceobserver.dev · 27/01/2025

🛜 We have an RSS feed live now! URL also in our nav if you lose this. (first event might be a bit wonky) performanceobserver.dev/feed.xml

performanceobserver.dev

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PerformanceObserver @performanceobserver.dev · 27/01/2025

Just confirmed it works! We won't see replies over there unless you bridge your Mastodon account to Bluesky. You'll get a private reply to remind you if this happens. Learn more about Bridge Fed: fed.brid.gy

fed.brid.gy

Bridgy Fed

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PerformanceObserver @performanceobserver.dev · 27/01/2025

Not sure if the bridge is working yet, but you can follow us at @performanceobserver.dev@bsky.brid.gy on Mastodon

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PerformanceObserver @performanceobserver.dev · 27/01/2025

Testing bridgy service to mastodon...

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PerformanceObserver @performanceobserver.dev · 24/01/2025

Find all details on the website including buttons to add to calendar

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PerformanceObserver @performanceobserver.dev · 24/01/2025

📣 1st event announcement!! We have @toddhgardner.com walking us through his new Chrome Extension that helps reveal the impact of RUM on search engine ranking, and @inesakrap.bsky.social will give us an insider view of working on the Performance chapter of the Web Almanac. performanceobserver.dev

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

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PerformanceObserver @performanceobserver.dev · 24/01/2025

Oh hi 👋 We're live with our own account now! Follow us for our web performance meetup-related announcements! - New events - New video uploads - Related events #webperf

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