WebPerformance Report @WebPerfReport
Web performance report every week in your inbox.. ⚡ Sponsored by: @Catchpoint - @RealWebPageTest | @DebugBear webperformancereport.com München Joined May 2021-
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⚡Featured posts this week : ✨ Zero Trust Implementation Guidelines: @NSAGov ✨ The Website Specification: @jdevalk ✨ Agent Skills: @addyosmani @OReillyMedia ✨ Lighthouse agentic browsing scoring: @GoogleChromeDev 🙏 Special thanks to the authors! #webperf
🎉 WebPerformance Report Week #22 is out! ✅ Join our growing community and subscribe today: ⚡ Web Performance Report:webperformancereport.com 🛡️ HTTP Security Report:webperformancereport.com/httpo/ ♿ A11y Report:webperformancereport.com/wave/ #webperf #websecurity #accessibility #a11y #ai
Watch out! Chrome has a huge bug with <input type="number"> which causes values to change unexpectedly. It's fixed in Chrome 150, but that won't land until the end of June.
⚡Featured posts this week: ✨ Forbes' A11y List 2026: @alanschwarz ✨ Modern Web Guidance: @paul_irish, @cjamcl, Rick Viscomi ✨ @vivaldibrowser: our biggest design overhaul: @jonsvt ✨ Unlock modern web capabilities: @philwalton 🙏 Special thanks to the authors! #webperf
🎉 WebPerformance Report Week #21 is out! ✅ Join our growing community and subscribe today: ⚡ Web Performance Report:webperformancereport.com 🛡️ HTTP Security Report:webperformancereport.com/httpo/ ♿ A11y Report:webperformancereport.com/wave/ #webperf #websecurity #accessibility #a11y #ai
Firefox 151 now support the Document Picture-in-Picture API that enables web apps to open an always on top window that can be populated with arbitrary HTML content. Details in the upcoming edition of Modern Web Weekly. Demo and subscribe link 👇 🧵1/3
This is why the @googlechrome DevTools MCP is a game-changer. The agent applies a fix, reloads ignoring cache, runs a Lighthouse audit, and checks the score to iterate on the next failure. Fully automated and deterministic. #AgenticDev #WebDev #AI
Do you remember when you joined X? I do! #MyXAnniversary
⚡Featured posts this week: ✨ FAQ schema died twice: @jdevalk ✨ How optimize your content for gen AI: @googlesearchc ✨ Install web apps with the new HTML element: @patrickbrosset ✨ Browsers Treat Big Sites Differently: @denodell 🙏 Special thanks to the authors! #webperf
🎉 WebPerformance Report Week #20 is out! ✅ Join our growing community and subscribe today: ⚡Web Performance Report: webperformancereport.com 🛡️HTTP Security Report: webperformancereport.com/httpo/ ♿A11y Report: webperformancereport.com/wave/ #webperf #websecurity #accessibility #a11y #ai
⚡Featured posts this week: ✨ Build agent-friendly websites: Kasper Kulikowski & Omkar More ✨ Hardening Firefox with Claude Mythos: @bgrins ✨ Google to no longer support FAQ: @rustybrick ✨ A11y Best Practices: @MariaLamardo 🙏 Special thanks to the authors! #webperf
🎉 WebPerformance Report Week #19 is out! ✅ Join our growing community and subscribe today: ⚡Web Performance Report: webperformancereport.com 🛡️HTTP Security Report: webperformancereport.com/httpo/ ♿A11y Report: webperformancereport.com/wave/ #webperf #websecurity #accessibility #a11y #ai
El agente de IA no sabe debuggear rendimiento si tú no le das el contexto para hacerlo. No es que sea malo. Por defecto trabaja a ciegas: sin acceso al navegador, sin trazas reales. #WebPerf #Performance #AIAgents #ChromeDevTools #Frontend
Our @googleanalytics GA4 Reports are now being tested in our staging environment. 👀 We are getting closer to launching our new Analytics Report. Performance, security, accessibility, and now analytics. Something new is coming to our reporting layer. #WebPerf #Analytics
We switched Speculation Rules on Shopify storefronts from conservative to moderate eagerness. Here's how that went: performance.shopify.com/blogs/blog/fas…
Barry Pollard @tunetheweb
6K Followers 902 Following Chrome Dev Rel helping make the web go faster!. All opinions my own. I’m primarily on 🦋 these days.
Henri Helvetica 🇭�... @HenriHelvetica
9K Followers 1K Following command-h @h2_meetup @spdy_meetup pronounced: on-REE. raconteur Henri Hypertext's Dad #RunnersInTech
Alex Russell @slightlylate
34K Followers 4K Following This place is not a place of honor. No highly esteemed deed is commemorated here. Noting valued is here...This message is a warning about danger.
Dan Shappir (host on ... @DanShappir
8K Followers 3K Following Principal Engineer @Sisense. Tech keynote speaker. Host on @JSJabber podcast. Invited Expert W3C #WebPerf Working Group. 🇮🇱
Noam Rosenthal 🦋 n... @nomsternom
2K Followers 2K Following Working on the web platform (Chromium, Google, etc). My opinions about AI are AI-generated
Tim Vereecke @TimVereecke
2K Followers 959 Following Loves speeding up websites. Web performance architect @Akamai, also runs https://t.co/mPiq48nQnu and https://t.co/1K6mO9oOGq #WebPerf #PageSpeed #SEO
Annie Sullivan (@anni... @anniesullie
3K Followers 952 Following Software engineer on @GoogleChrome. Former @USDS. Maker, mommy, martial artist, occasional baker. Opinions my own, not my employer's.
Joan León 🏞️⚡... @nucliweb
12K Followers 4K Following ⚡️ Web Performance Artisan at @perfreviews_ | @GoogleDevExpert in #WebTech | @cloudinary Ambassador
Gilberto Cocchi @gilberto_cocchi
622 Followers 584 Following I am a websites dietician, passionate about #webperf, focusing on #webvitals in Google. Opinions are my own. Staff Web Ecosystem Technical Consultant @Google.
Emma milk tea @dayemma697
0 Followers 275 Following moonlight in my veins, coffee in my soul ☕🌙 follow back
𝑨𝒏𝒅𝒓𝒆�... @src_rip
888 Followers 1K Following https://t.co/9Bfzbylxro on YT LiveView Expert, interests: Elixir | Phoenix | NeoVim | Web Performance | Accessibility | WebRTC | Svelte | building https://t.co/nSnSCsmfmB
Chloe with Curls @chloefroomatl
14 Followers 310 Following Naturally curly hair, 28. Love to tease. Gym, yoga, hiking. You like being pleased?
DrawCub @dr4wcub28
6 Followers 55 Following // Web Developer console.log(decodeURI('%E3%81%8D%E3%81%95%E3%81%BE%EF%BC%81%E8%A6%8B%E3%81%A6%E3%81%84%E3%82%8B%E3%81%AA%E3%83%83%EF%BC%81'));
Treo @__treo
952 Followers 13 Following Hi! Treo is a Core Web Vitals monitoring tool based on CrUX & Lighthouse. Here we talk about new features, #webperf, and #sitespeed. Questions? → [email protected]
Passive Freelancer @KAlshashat
154 Followers 185 Following Helping freelancers turn skills into income. Guides, tools, and smart strategies for digital work.
Jaime Palau 🍉 @jaimepalau
680 Followers 5K Following Faig Webs. Branding, eCommerce, Màrketing i disseny. Molt de WordPress. SALEMER i del @levanteud. #captweetsenseerrata
Satoshi Kikuchi(き�... @mantangs
448 Followers 615 Following UXデザイナー・日本人初のノーマン&ニールセンマスター レスポンシブウェブデザインの日本発祥者 UX DAYS TOKYOオーガナイザー Web DIrections Eastの代表
Zuhayr Barhoumi @ZuhayrBarhoumi
1 Followers 33 Following Full-stack developer | EnvisionTech #WebDevelopment #Tech #Coding
Vasu Hosur @perfforlife
42 Followers 415 Following Your friendly neighbourhood Performance Engineer 🙂 Works at @servicenow, cares about performance and doesn't compromise on UX 😎
Constantin Câmpean @costinEEST
630 Followers 1K Following Wrangling the DOM by day, sheeting by night. https://t.co/Hs1JuCFA63 (RO) | https://t.co/nTexeMVYO3
Michaś Michasik @tastygherkin
5 Followers 52 Following
Adam Zachary Wasserma... @adamzwasserman
979 Followers 401 Following Independent researcher. Cross-linguistic transformer dynamics, convergence-of-signals method. Books in progress: Robot in the Dark, Replicators, https://t.co/3QzvkGYvCs
Martin Michálek @machal
4K Followers 270 Following Web performance & CSS. @vzhurudolu author. Head of @frontendisti. @pagespeedcz consultant. Support 🇺🇦.
Loren | Cheddy @stew_loren
451 Followers 1K Following developer, aging skateboarder, and piano enthusiast working on @usecheddy
Crazyones110 @crazyones110
12 Followers 703 Following
🌋 @user50094473
26 Followers 1K Following
pychen @chenpingyuandev
4 Followers 181 Following
Amos Isaila @amosisaila
46 Followers 195 Following Angular enthusiast. I love the web. Content creator. https://t.co/ECDio9RWmI
omnireso @omnireso
1K Followers 704 Following 🥁 dans le duo https://t.co/De7vi2JjhP 🏍️ Consultant #seo au sein de la meilleure agence : Noiise #Nantes https://t.co/9B41Pfmv0E éditeur de sites minimum 92% webperf
OptimizeTheWeb.com @OptimizeTheWeb_
0 Followers 9 Following Insights, guides, and experiments in Web Performance Optimization. Core Web Vitals, CDNs, caching, and real-world speed.
Nikki @serenitychic420
6 Followers 46 Following
Proxy @proxyy1337
2 Followers 794 Following
Sapien 🇵🇸 @IamCarTKN
182 Followers 1K Following
Tech Greg @TechGregNYC
3K Followers 3K Following Tech Commentator | EV Enthusiast | AI | Devices | Marathon Runner | Father of 2 | Follow for reviews and insights!
Nada Sa. @shortcuttolive
129 Followers 583 Following Information technology - BI developer-@Mawhiba alumna-interested in #Blockchain #Web3
Chickie-Pop-Tx @txdeever
259 Followers 2K Following Interests include web, health/fitness, finance and travel. Opinions are my own, RTs not endorsements.
Qexba @Qexba34014
0 Followers 44 Following
Den Odell @denodell
456 Followers 377 Following Staff Engineer at Canva. Author of Performance Engineering In Practice (Manning)
Qalber @Qalber0555403
24 Followers 892 Following
KΞNNETH ・ ケニ�... @kennethrohde
6K Followers 3K Following 🌍 Principal Engineer, Web Platform Engineering @intel 🇩🇰 🌱 Co-inventor PWA 👷 @ChromiumDev 🌎 @W3CTAG alumni 🐡 Project Fugu 🏆 Google GDE, Microsoft MVP
Bartek Miś @bartek_mis
262 Followers 486 Following CEO/CTO at Studio Sidekicks / Bigger Picture. Web Performance Expert.
Barry Pollard @tunetheweb
6K Followers 902 Following Chrome Dev Rel helping make the web go faster!. All opinions my own. I’m primarily on 🦋 these days.
Addy Osmani @addyosmani
395K Followers 3K Following Director, @GoogleCloud AI. Gemini ✨ Agents. Prev: Eng. leader, @GoogleChrome • Author • Great user, developer & AI experiences • @GoogleAI @GoogleDeepMind
Stoyan Stefanov 🪩 @stoyanstefanov
17K Followers 558 Following PerfPlanet, "JavaScript Patterns"... ex-Facebook, Yahoo, WebPageTest https://t.co/Uzv191KSFQ https://t.co/ZOF437DboX
Kent C. Dodds 🏹 @kentcdodds
319K Followers 449 Following Husband, 6x Dad, Latter-day Saint, Dev, Educator 🏹 https://t.co/bGlNcdW2iJ ⚡️ https://t.co/X8fNGbdL2y 🌌 https://t.co/pPQmnZS6rR 🚀 https://t.co/NYn5aJVGve 🏆 https://t.co/U5KafpJTZp
Henri Helvetica 🇭�... @HenriHelvetica
9K Followers 1K Following command-h @h2_meetup @spdy_meetup pronounced: on-REE. raconteur Henri Hypertext's Dad #RunnersInTech
Jake Archibald @jaffathecake
107K Followers 2K Following Developer of sorts at @firefox. No thought goes unpublished. He/him. Also jaffathecake on Mastodon, bsky, Threads etc.
Lee Robinson @leerob
255K Followers 798 Following Teaching developers @cursor_ai, previously @vercel
Wes Bos @wesbos
435K Followers 2K Following Fullstack JS Dev ❯ @SyntaxFM ❯ https://t.co/6heZ7gZqg1 ❯ https://t.co/lOo3xh23G1 ❯ https://t.co/XYbxq79WBS ❯ Posts 🔥 Tips
Gergely Orosz @GergelyOrosz
336K Followers 3K Following Writing @Pragmatic_Eng, the #1 software engineering newsletter on Substack. Author of @EngGuidebook. Formerly Uber & Skype.
Theo - t3.gg @theo
341K Followers 4K Following Full time CEO @t3dotchat. Part time YouTuber, investor, and developer
Chrome for Developers @ChromiumDev
420K Followers 124 Following The official Chrome Devs X account from Google. We want to help you build beautiful, accessible, fast, & secure websites that work for everyone, everywhere.
Alex Russell @slightlylate
34K Followers 4K Following This place is not a place of honor. No highly esteemed deed is commemorated here. Noting valued is here...This message is a warning about danger.
Dan Shappir (host on ... @DanShappir
8K Followers 3K Following Principal Engineer @Sisense. Tech keynote speaker. Host on @JSJabber podcast. Invited Expert W3C #WebPerf Working Group. 🇮🇱
Noam Rosenthal 🦋 n... @nomsternom
2K Followers 2K Following Working on the web platform (Chromium, Google, etc). My opinions about AI are AI-generated
DebugBear @DebugBear
2K Followers 263 Following Monitor page speed and Core Web Vitals in the lab and with real user data.
jhey ʕ•ᴥ•ʔ @jh3yy
146K Followers 143 Following designing interfaces. engineering experiences. many can build it. few can explain it. @shopify brand design studio 💎 playbook waitlist → https://t.co/DtDQ0KB5hQ
Tim Vereecke @TimVereecke
2K Followers 959 Following Loves speeding up websites. Web performance architect @Akamai, also runs https://t.co/mPiq48nQnu and https://t.co/1K6mO9oOGq #WebPerf #PageSpeed #SEO
Sarah Drasner @sarah_edo
296K Followers 3K Following Opinions my own Area Tech Lead, AI and Web Ecosystem @chrome, Formerly Sr. Director of Core Infra @google • O'Reilly Author • https://t.co/HhzYWwxYAH
Vivaldi Browser @vivaldibrowser
43K Followers 2K Following It's a web browser. It's Powerful. It's Personal. It's Private. Support: https://t.co/l8HQithKJ1
DogeDesigner @cb_doge
1.9M Followers 959 Following
Maria Lamardo @MariaLamardo
2K Followers 716 Following Sr. Accessibility Program Manager @ Github / A11y Consultant / International Speaker / Vue.js Community Partner/ Thoughts are my own
Matt 'TK' Taylor @MattieTK
7K Followers 4K Following pm on developer platform @cloudflare formerly @FT. check https://t.co/wwPuMogL8d for other social profiles. mostly on bsky. https://t.co/JSaAeAV0QY
Cheng Lou @_chenglou
69K Followers 449 Following Worked on: @reactjs, @messenger, @reasonml, @rescriptlang Currently: @midjourney, Pretext
Juntao Qiu | 邱俊�... @JuntaoQiu
1K Followers 346 Following Helping frontend developers move beyond features and design real-world frontend systems.
ShopDevAlliance @ShopDevAlliance
677 Followers 59 Following Shopify Developer Alliance. The most worthwhile paid Slack community for Shopify Developers. By Shopify Devs, for Shopify Devs.
Nikita Bier @nikitabier
1.1M Followers 2K Following head of product @x, advisor @solana, venture partner @lightspeedvp, ex-founder @gasappteam (acq by discord), ex-founder @thetbhapp (acq by facebook)
Amandeep Singh @amanvirdi
298 Followers 1K Following Web Developer, Writer, Mentor & Speaker. Work with small sized businesses to Fortune 500 companies. Tweet about Web Dev, ecommerce & management.
Dan Murphy @danity_project
104 Followers 222 Following Currently: TL for PWA on Chrome, Project 🐡, Dhamma Practitioner, too many hobbies, he/him Previously: Blink, IndexedDB, Web Blobs, G+ Ranking
Syntax @syntaxfm
48K Followers 316 Following Tasty Treats for Web Developers with @wesbos @stolinski and @codinggarden Brought to you by @sentry
Peter Steinberger �... @steipete
533K Followers 2K Following Polyagentmorous ClawFather. Came back from retirement to mess with AI and help a lobster take over the world. @OpenClaw🦞 + @OpenAI
James LePage @jameswlepage
2K Followers 825 Following Building something new; foundational AI for complex systems. Hiring & DMs open. Prev Head of AI @automattic | Prev @WordPress Core AI Co-Lead | 2x Exited
Dries Buytaert @Dries
37K Followers 17 Following Creator of Drupal, Drupal project lead, co-founder and Executive Chair of Acquia. Young Global Leader at WEF. Building the world we want to exist in.
Orange Developer @OrangeDev
3K Followers 640 Following Welcome to #developers, #startups, #companies and #partners. Let's share all topics related to #Orange #APIs: new products, events, articles, and more.
Michael Solati @MichaelSolati
666 Followers 147 Following
The Hacker News @TheHackersNews
1.4M Followers 2K Following The #1 trusted source for cybersecurity news, insights, and analysis — built for defenders and trusted by decision-makers.
Filip Ganyicz @ganyicz
2K Followers 830 Following Laravel developer • Pushing the limits of Livewire and Alpine w/ Bond • Working on Blaze & Flux UI @ Livewire
Adam Zachary Wasserma... @adamzwasserman
979 Followers 401 Following Independent researcher. Cross-linguistic transformer dynamics, convergence-of-signals method. Books in progress: Robot in the Dark, Replicators, https://t.co/3QzvkGYvCs
Jimmy Lai @feedthejim
5K Followers 469 Following EM @nextjs @vercel. Previously: @reactnative @workplacemeta @meta
Daniel Lemire @lemire
36K Followers 2K Following Software performance expert. Ranked in the top 2% of scientists globally (Stanford/Elsevier 2025) and among GitHub's top 1000 developers. Father, husband.
Loren | Cheddy @stew_loren
451 Followers 1K Following developer, aging skateboarder, and piano enthusiast working on @usecheddy
Pato @devpato
6K Followers 947 Following @GoogleDevExpert @Auth0Ambassador @Cloudinary @postman @WomenTechmakers @twilio @aws @MVPaward
Embrace @embracemobile
373 Followers 312 Following User-focused observability for mobile and web, built on #OpenTelemetry. Proudly in YC S19 and YCG21.
Shaun Anderson @Hobo_Web
12K Followers 457 Following Stealth Agentic AI Agency founder. 25+ years in SEO. I only post about SEO, AEO, Marketing, Systems Automation and Agentic AI.
Radimir Bitsov @radibit
389 Followers 564 Following Frontend Engineer #accessibility 🤝 #webperf 👨💻 @Data4Life_D4L 💬 @a11yberlin ✍️ @perf_tooling 👶🎧🚴🌲🏔
omnireso @omnireso
1K Followers 704 Following 🥁 dans le duo https://t.co/De7vi2JjhP 🏍️ Consultant #seo au sein de la meilleure agence : Noiise #Nantes https://t.co/9B41Pfmv0E éditeur de sites minimum 92% webperf
Vasa Krishnamoorthy @vasanth_k
607 Followers 1K Following Tweet about Leadership & Management • Eng Manager @Pinterest • ❤️ Web Perf • 🎥Movie Buff • ✈️ Backpacking • 🌱 Gardening • Lifelong Learner • Opinions my own
Vio @vio
578 Followers 811 Following working on devtools and web perf, building @relative_ci maintainer of https://t.co/soltCHWtmR, https://t.co/7UKwtn5lUL
Oliver Lindberg @oliverlindberg
5K Followers 3K Following Independent editor and content consultant. Founder and captain of @pixelpioneers. Co-founder and former curator of GenerateConf. Former editor of @netmag.
Ryo Lu @ryolu_
86K Followers 2K Following Design @Cursor_ai. Early @NotionHQ, @Stripe, built startups. I make a world where anyone can make software. Aspiring k-pop idol.
Ben Dicken @BenjDicken
35K Followers 838 Following databases → @planetscale videos → https://t.co/J5soMyfENa writing → https://t.co/YpfkF0JIKG
Chris Wilson (@cdub@m... @cwilso
6K Followers 1K Following World Wide Web Shaman. Techno-pessimist. Web Standards Tech Lead at Google. Freethinker. He/him.
contentport @contentport
888 Followers 3 Following the open-source typefully alternative // built by @joshtriedcoding and @jomeerkatz
Liam Griffin @liam_at_shopify
14K Followers 6K Following Developer Advocate @shopify & Window Opener for cats. Love sharing insights to help Shopify developers. Also collecting records & exploring space.
Hayden Field @haydenfield
17K Followers 5K Following Senior AI reporter @Verge. 6 years covering the AI industry's power dynamics & societal implications. Formerly @CNBC. DM me off-record on Signal: haydenfield.11
Dave Gillhespy @yodasw16
505 Followers 359 Following @[email protected] Software Development Manager at @amazon. Love CSS, RWD, Design Systems, and Web Perf. Movie nerd. Previous: @rocketmortgage He/Him
Patricia Lawless @pslawless
964 Followers 666 Following Catherder, foodie, college football fan. #GoDawgs. I work on @firefox Performance. #mozilla #webperf.
Martin Stepanek 🏳�... @techseovitals
207 Followers 105 Following Not active here anymore, find me on LinkedIn ⤵️






























