Sia Karamalegos @sia.codes Freelance web developer & performance engineer. Speaker, writer, teacher, tech community organizer. Google Dev Expert in web technologies, ex-Shopify. she/her. Durham, NC, USA.
Tech: sia.codes
Non-tech: offline.sia.codes
Art/photos alt: @sia.studio
Addy Osmani @addyosmani.bsky.social Former Engineering lead working on Gemini and Google Cloud AI
I want you to win :) For more on what I'm up to, I'm at addyosmani.com
Scott Jehl @scottjehl.com Web Designer/Dev. Accessibility & Performance Fan. Mediocre surfer.
Engineer: Squarespace Performance & Accessibility
My Web components course: $25 if you use the code TWENTYFIVE https://scottjehl.com/learn/webcomponentsdemystified/
scottjehl.com
Tim Kadlec @tkadlec.bsky.social Principal Product Manager @cloudflare—focused on performance and observability.
Co-chair of https://perfnow.nl
Taller than my photo looks. 
Alex Russell @infrequently.org Trying to make a web that works for everyone.
Also at https://toot.cafe/@slightlyoff
For more: https://infrequently.org/about-me/
https://infrequently.org/
Henri Helvetica 🧑🏾🚀🇭🇹 @henrihelvetica.bsky.social 📍 ec2-ca-central-1
👷🏾♂️ command-h
🏃🏾♂️ #RunnersInTech
🗣️ pronounced: on-REE
Yoav Weiss @yoav.ws On a mission to make the web faster, one perf feature at a time. Web platform @ Shopify. WebPerfWG and WICG co-chair. RICG4life. Opinions are my own, etc. 
Katie Sylor-Miller @ksylor.bsky.social Principal Frontend Engineer. Fairy Gitmother at ohshitgit.com. Thoughts are mine not my employer’s #GNUTerryPratchett
Patrick Meenan @patmeenan.com Web performance geek on the Chrome team at Google.
Formerly WebPageTest, Meta, Cloudflare, AOL...
Barry Pollard @tunetheweb.com Web Performance Developer Advocate at Google Chrome helping to make the web go faster! All opinions my own.
Rick Viscomi @rviscomi.dev Chrome DevRel at Google, web developer
rviscomi.dev
Joan León @nucliweb.net ⚡️ Web Performance Artisan at @perf.reviews | Google Dev Expert in Web Tech | Cloudinary Ambassador | ❤️ Image Optimization | Girona
Jason Grigsby @gri.gs 
Estela Franco @guaca.bsky.social Web Performance @ Shopify
Tired mom 👦👶
Passionate about Web Perf, Web Standards, TechSEO, & Rock Music.
Google Dev Expert in Web Technologies
#mujeresenseo
🌐 estelafranco.com
🐘 https://toot.cafe/@guaca
📍 Barcelona
Annie Sullivan @anniesullie.com Chrome Web Platform Engineer (Core Web Vitals). USDS alum. Mom. Loves OCR training, making and crafting. Hates facists.
Anna Migas @szynszyliszys.bsky.social Lead UI Developer at Field Intelligence and public speaker. Google Developer Expert in web technologies. I am all about web performance and tech conferences.
Paul Irish @paul.irish web performance and DevTools, mostly.
In '97 I wrote a paper for English class on HTML Image Maps. I haven't changed much since.
Stoyan Stefanov @stoyan.me stoyan.me, PerfPlanet, "JavaScript Patterns", "React: Up & Running", YSlow, SmushIt. Formerly of Facebook, WebPageTest, Yahoo
Philip Walton @philipwalton.com DevRel lead @ Google working on Chrome and the Web. I occasionally blog at: https://philipwalton.com
Philip Tellis @bluesmoon.info Creator: boomerang.js ∘ Founder: LogNormal ∘ Organizer: Boston Web Perf & CAJUN ∘ Web Performance ∘ Real User Measurement ∘ Data Nerd ∘ Bread Baker ∘ Akamai ∘ W3C WebPerf WG ∘ Julia dev ∘ Conference speaker ∘ Full stack pancakes ∘ Unstacked developer
Mark Zeman @markzeman.com Founder @speedcurve.com, Hopeful idealist
Jesse Heady @jesseheady.com SRE 🌱 Reliability & Web Perf leader ✨ prev Runwise, 37signals, Realtor.com, & Cox Media Group ⛰️ Appalachian 🕸️ https://jesseheady.com #webperf ⚡️ I ❤️ the web! Opinions my own.
Michal Mocny @mmocny.com Web Vitals, Speed Metrics, and #webperf @ Google.
Previously: AR, Physical Web, WebApps, Startups.
Autodidactic Geek, Woodworker, Sailer. Proud Father of 3 boys.
Joseph Scott @josephscott.bsky.social Lead of the performance team at Automattic.
https://josephscott.org/
danielroe @danielroe.dev 🏡 https://roe.dev
➕ building @nuxt.com • @npmx.dev • @nitro.build • https://elk.zone
💝 https://page-speed.dev • https://firstcommit.is • https://react-to-nuxt.com
🏅 Google GDE • Microsoft MVP • GitHub ⭐️
he/him
signal: danielroe.57
🧗♂️ ⛷️ 🚴♂️ ✝️
📍 edinburgh 🏴
Joseph Wynn @joseph.likesdogs.nz Web performance, accessibility, and open source. Co-founder of A11y Pulse, ex BBC, ex SpeedCurve. Views are mostly those of my dogs. (he/him/ia)
Brendan Kenny @brendankenny.bsky.social Formerly lighthouse and web performance on Chrome. Open source, maths, Typescript nonsense, and bird stuff, apparently
Christian "Schepp" Schaefer @schepp.dev Nick: Schepp | Into Front-End & WebPerf | Co-Host https://workingdraft.de | Co-Organizer https://fronteersconf.org, https://www.meetup.com/webworker-nrw & https://css.cafe | Co-Author https://wir-zaehlen.com
Tammy Everts 🍁 @tammyeverts.com I contain multitudes, but for brevity: reader, writer, speaker, baker, quilter, yoga-er, mom-joke teller, lover of lakes and mountains.
🫶 Building #UX / #webperf / #o11y community at @embrace.io (which acquired @speedcurve.com)
🫶 Co-chair of @perfnow.nl
Lucas Pardue @simmervig.org Protocol nerd at Apple. Ex-Cloudlfare. QUIC and WebTransport WG co-chair. Thoughts belong to me.
⭑ salma @whitep4nth3r.com whitep4nth3r.com
Staff Engineer at [REDACTED].
I am not on The Internet.
♥ drummer, maker of musics @chromasetica.com
Vinicius Dallacqua @webx.bsky.social Into browsers and agentic systems.
Engineering QA.tech
Building https://agent.perflab.io
Into film photography and web performance nerd.
gilbertococchi @gilbertococchi.bsky.social I am a websites dietician, passionate about #webperf, focusing on #webvitals in Google. Opinions are my own. Staff Web Ecosystem Technical Consultant @Google.
Mateusz Krzeszowiak @krzksz.bsky.social Web performance @ Shopify.
Ben Schwarz @benschwarz.bsky.social Founder & Product developer @calibreapp.com.
Into sustainability, online privacy, cycling, photography, making music, hiking, native country and creative pursuits 🌞
Eric Portis @ericportis.com Web developer; used-to-be-a-printmaker; Let’s Share What We Know
Sander van Surksum @sandervs.bsky.social Web performance enthousiast - father of 4 daughters - parttime muralist
founder of https://www.iron-out.io
Robin Marx @programmingart.bsky.social Network protocols (HTTP/2, HTTP/3, QUIC) and Web performance
at Akamai. PhD. Dad. Longsword fencer. He/Him.
http://linkedin.com/in/rmarx
@programmingart@mastodon.social
@nicolaboccuto.bsky.social @nicolaboccuto.bsky.social 
Jacob "kurtextrem" Groß @kurtextrem.de Staff Performance Engineer @Framer · webperf/UX/AI and the Core Web Vital INP are my interests. ex. gamer · @kurtextrem on other platforms.
Andy Davies @andydavies.me PM for Web Observability by day
Vegetable grower… Eurorack synth dabbler… Bristol Bears Women’s fan by night
https://andydavies.me
Alistair Shepherd @alistairshepherd.uk Frontend developer, accessibility advocate and development lead at Series Eight.
Work: Front end development, CSS, accessibility, web performance
Personal: Mountains, snowsports, hillwalking, craft, music
Edinburgh, Scotland 🏳️🌈🏴
Andrea Verlicchi @verlok.bsky.social I love to create and optimize websites. I'm passionate about web performance, accessibility and user experience. I write about the web on my tech blog, on Medium and Smashing Magazine, and I love to speak at web conferences.
Noam Rosenthal @nomster.bsky.social Web platform engineer @ Chrome
juan ferreras @juanf.is engineer by day, over-engineer by night.
built: #LabelRadar (acq.)
building: ???
SpeedCurve @speedcurve.com SpeedCurve is now part of Embrace.io!
Since 2013, we've helped thousands of companies – from Amazon to Zillow – monitor and improve their site speed and UX (including and beyond Core Web Vitals). Learn more & start your free trial at speedcurve.com!
PerfReviews @perf.reviews 🇺🇸 Experts in web performance, we help you to solve performance issues
🇪🇸 Expertos en web performance, te ayudamos a solucionar problemas de rendimiento
https://perf.reviews/
Medhat Dawoud @medhat.dev Sr Software Engineer @ Miro, #GDE for #webperf, Dad, Blogger(medhat.dev), Speaker, Baker, and Runner
I write about Performance, #A11y, DevTools, opinions are my own
Ines Akrap @inesakrap.bsky.social Frontend engineer. Web performance and sustainable web. Co-chair W3C Sustainable Web Interest Group. Co-author of Building the Sustainable Web.
Jean-Pierre Vincent - #webperf & #greenit 🚀♻️🌱 @jpvincent.bsky.social Webperf expert (audit, trainings, code), Green IT specialist (trainer, audit)
Cliff Crocker @cliffcrocker.bsky.social I’m here for the RUM, WebPerf and dad jokes.
WebPerformance Report @webperfreport.bsky.social Web performance report every week in your inbox. ⚡
Sponsored by: @Catchpoint
👉 https://webperformancereport.com/
Harry Roberts @csswizardry.com 🚀 Independent Web Performance Consultant • Speaker • Google Developer Expert, Web Performance • Accepting new clients • https://harry.is/for-hire
Fabian Krumbholz @fabkru.bsky.social passionate about web performance, Google Developer Expert, speaker, writer
Dan Shappir 🎗️ host JavaScript Jabber podcast @danshappir.bsky.social Principal Engineer @Sisense. International tech conference speaker. Host on JavaScript Jabber podcast. Invited Expert W3C #WebPerf Working Group.
Alain Schlesser @schlessera.dev Agentic Engineer & Software Architect | AI Agent Systems · Context Engineering · MCP | 25+ Years Building Complex Systems | Google Developer Expert | Speaker
Tim Vereecke @timvereecke.bsky.social Loves speeding up websites. Web performance architect @Akamai, also runs https://www.scalemates.com #WebPerf #PageSpeed #SEO
Kevin Farrugia @imkev.dev Frontend Engineering. Web Performance. Be kind.
Ryan Townsend @twnsnd.com Principal Product Manager @ Cloudflare • Public Speaker • 20+ YOE in Tech, 10 as CTO • LessonsofaCTO.com
HTTP Archive 💾 @handle.invalid Public dataset that tracks how the web is built. Maintained by @patmeenan.com, @paulcalvano.bsky.social, @tunetheweb.com, @maxostapenko.com, and Nurullah Demir
Karlijn Löwik @karlijnlowik.bsky.social CEO & Co-founder @RUMvision | Simplifying web performance | Women in tech advocate | Toddler mom | International speaker | Lover of memes | Co-chair RUM W3C | Board member Mage-OS NL
Feels like this bio is getting really long😅
@erwinhofman.bsky.social @erwinhofman.bsky.social Google Developer Expert in web performance
CTO @ RUMvision.com
Also sharing over at https://linkedin.com/in/erwinhofman
Ivan Akulov @iamakulov.com Web perf engineer @ Framer. Prev. web perf consultant (Google, Appsmith, Toggl, etc). Getting React interactions 2-4x faster. GDE. He/him 🏳️🌈
performance.now() conference @perfnow.nl A single track conference with fourteen world-class sessions covering today’s most important web performance insights. #perfnow
https://perfnow.nl
19th and 20th of November, Amsterdam
Curated by Tim Kadlec, Tammy Everts, Harry Roberts, and PPK
Nic Jansma @nicj.net Software developer building high-performance websites, apps, observability + OS tools @ Cloudflare. W3C WebPerfWG+RUMCG co-chair. he/him. ex-AKAM/MSFT.
Jason Williams @jason-williams.co.uk JavaScript Infrastructure & Tooling @Bloomberg @TC39, creator of Boa (JS Engine)
Paul Calvano @paulcalvano.bsky.social 
Jordy Scholing @jordyscholing.bsky.social ❤️ web performance
Keerthana Krishnan @keerthanak17.bsky.social 
David Ross @cdaveross.bsky.social PNW web-performance specialist; into cooking, craft beer & cider, otter pics, & intersectional support. (He/They)
Jodie Chan @jodiechan.bsky.social Cross-border web perf specialist by day, singer songwriter by night. Look for the one with the pink hair :)
Let's chat on #webperf, #music, #extremetrekking
Jad Joubran @jadjoubran.io Independent JavaScript & Web Performance consultant
LearnJavaScript.online
LearnHTMLCSS.online
LearnTypeScript.online
https://React-Tutorial.app
https://SQL-Tutorial.app
More info: https://jadjoubran.io
🇳🇱 Amsterdam
@tzetan.bsky.social @tzetan.bsky.social 
Jack Franklin @jackf.io Googler focusing on web performance and performance tools.
Find me online at https://jackf.io
@erikwitt.bsky.social @erikwitt.bsky.social 
Chrome for Developers @developer.chrome.com The Official Chromium Developers Account.
Check out our developer portals: https://developer.chrome.com/ and https://web.dev/
@imeugenia.bsky.social @imeugenia.bsky.social 
Sergey Chernyshev @sergeyche.dev I care about UX speed and organize NY UX Speed and Web Performance meetup
Stuart McMillan @stuart-mcmillan.com Digital geek, long time believer in great user experiences. I want to make websites better for all users and the businesses that run them.
Also, dad to Iona and Murdo.
I self-identify as a runner.
https://stuart-mcmillan.com/
Matt Hobbs (he/him) @therealnooshu.bsky.social • ex-Head of Frontend Development @ Government Digital Service (GDS).
• Passionate about #webperf & F1.
• Cancer survivor (grade 3 brain cancer, I named Gary).
• Don't blame my employer for the dumb things I say.
• https://hachyderm.io/@TheRealNooshu
Firefox Performance @firefoxperformance.bsky.social Working to make Firefox and the web faster. #firefox #webperf
Aymen Loukil @loukilaymen.bsky.social International SEO and Web Performance Consultant, Speaker, Founder of https://speetals.com/ CEO of https://Sawtly.com
James @43081j.com Lead: @e18e.dev - tinylibs - chai
Maintainer: parse5 - @unjs.io - @bomb.sh - chokidar - @npmx.dev - @vueuse.org - prettier
Sponsor me at github.com/sponsors/43081j
github.com/43081j / Focusing on ecosystem perf & tooling 🥳
Zach Leatherman @zachleat.com 💾 Web Developer
🔗 https://zachleat.com
🎈 Creator/Maintainer of @11ty.dev
🧰 @fontawesome.com
🌾 A random person from Nebraska maintaining software
🏳️⚧️ Listen to Trans Folks
👋🏻 He/him/they
🐘 https://zachleat.com/@zachleat
💨 https://speedlify.dev/ for WebPerf
Aaron T. Grogg @aarontgrogg.com Web Performance Architect
Core Web Vitals Specialist
aarontgrogg.com
Brian Louis Ramirez @screenspan.net Born in California, made in Germany. Loves making music, hiking and running. Blogs at https://screenspan.net.
@mattzeunert.com @mattzeunert.com Working on web performance optimization, founder of @debugbear.com
vanderhoop @vanderhoop.bsky.social Building a best-in-class RUM Platform at rumdash.io. Here for #CoreWebVitals #ElixirLang and #GoPackGo
WebPerfWG @webperfwg.org The W3C Web Performance Working Group, making the web faster and more reliable since 2010!!
Planning to post on upcoming meetings, their summaries and generally exciting work that happens in the web performance space
Ethan Gardner @ethangardner.com I'm a full stack engineer with a bias toward the front-end. Web performance optimization, accessibility, and all that jazz.
@uxify.bsky.social @uxify.bsky.social 
Todd H. Gardner @toddhgardner.com I start things.
https://www.toddhgardner.com/
Request Metrics @requestmetrics.com Integrated Web Performance Monitoring
👉 https://requestmetrics.com/
Peter Mbanugo @pmbanugo.me Software engineer/consultant, trainer, and author
@pluralsight.
Interested in Web performance, CI/CD, scalable/fault-tolerant systems
https://www.youtube.com/@pmbanugo
PerformanceObserver @performanceobserver.dev A virtual meetup for the web performance community
https://performanceobserver.dev/
Aleksey Kulikov @alekseykulikov.bsky.social #webperf, founder of https://treo.sh/, synth player, live in Maribor, Slovenia
Jecelyn Yeen @jec.fish Principal Software Engineer. Ex-Googler. 👩💻🇲🇾🤿
Zuzana Fatrdla @zuzanafatrdla.bsky.social Web. performance consultant (Pagespeed.one), front-end developer, printfluencer.
#webperf #frontenddev #3Dprint
e18e @e18e.dev https://e18e.dev (Ecosystem Performance) is a community initiative to bring together people who are passionate about improving performance in the JS ecosystem. Get involved at https://chat.e18e.dev 🚀
Dan Gayle @dangayle.bsky.social Web perf at Shopify, musician, lifelong antagonist of puppers