WebPerformance Report @WebPerfReport
Web page performance test report every week in your inbox.. ⚡ Sponsored by: @Catchpoint - @RealWebPageTest | @DebugBear webperformancereport.com München Joined May 2021-
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🔎 Mobile is more than Android and iOS. Over 2 billion devices use alternative platforms, expanding the ecosystem in ways many overlook. Our latest research explores how open source is shaping this transformation. Read more: hubs.la/Q03FkwZ20
Third-party code can cause a lot of CPU tasks on the browser main thread, slowing down the page load and delaying user interactions. Our new article explains how to Partytown and web workers to run third-party scripts in the background! debugbear.com/blog/partytown…
View Transitions are enabled by default in Firefox Nightly, so they're on their way to stable. Give it a test with your current transitions, and give me a shout if anything doesn't look right.
Learn about the new CSS random() function, now available to experiment with in Safari Technology Preview. There are lots of amazing ways to use random values in CSS. Learn more in "Rolling the Dice with CSS random()": webkit.org/blog/17285/rol…
I added a small section about picking more suitable devices on @RealWebPageTest: csswizardry.com/2025/08/low-an…
MDN just got a glow-up! 🌟 We’ve completely rebuilt our front end, redesigned, reengineered, and ready to help you find what you need. ✨ New search ✨ Improved typography & code rendering ✨ Sleeker nav & icons Read more 👇 developer.mozilla.org/en-US/blog/lau…
The Most Cited Websites by AI Models (citation frequency): 1. reddit - 40.1% 2. wikipedia - 26.3% 3. youtube - 23.5% 4. google - 23.3% 5. yelp - 21.0% 6. facebook - 20.0% 7. amazon - 18.7% 8. tripadvisor - 12.5% 9. mapbox - 11.3% 10. openstreetmap - 11.3% 11. instagram - 10.9%…
It's alive! Yes, this example is extremely basic, but I'm just sending the first actual AI prompts using the new @WordPress PHP AI Client SDK. It's a huge step for this SDK, which will make it super simple for PHP developers to talk to any AI providers with a single API.
⚡Featured posts this week: ✨ HTTP is not simple: @bagder ✨ Container Queries are Widely Available!: Miriam Suzanne ✨ Adidas Protected High-Stakes Ecommerce: @Akamai ✨ How do LoAF affect user behavior?: @SpeedCurve 🙏 Special thanks to the authors! #webperf
🎉 WebPerformance Report Week #33 is out! ✅ 🔍 Ready for next Week? Don’t miss out! ⚡ Web Performance Report: 👉 webperformancereport.com 🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo/ #webperf #corewebvitals #ux #seo #cybersecurity #websecurity
Rolldown has a great chunking API ... and I might have been involved in getting it to where it is today 🧑🏼🍳 Looking forward to sharing how we're using Rolldown at @framer.
Rolldown has a great chunking API ... and I might have been involved in getting it to where it is today 🧑🏼🍳 Looking forward to sharing how we're using Rolldown at @framer.
We're all about open source, and now that includes our typeface✍️ Get your hands on our font family over on GitHub, or access Mozilla Headline and Mozilla Text fonts on Google Fonts. fonts.google.com/specimen/Mozil…
For many years, I've been looking for the perfect replacement for @jquery. Modern vanilla js has many of the features that made jQuery popular, but often with worse ergonomics. Today, I finally discovered the solution: Just use jQuery. :D
⚡Featured posts this week: ✨ Dynamic rendering at scale @HelloFresh: ✨ 2025 SaaS WebPerf Benchmark Report: @Catchpoint ✨ The Perf Extensibility API: @csswizardry ✨ Why Debugging Web Performance: @pixelpioneers 🙏 Special thanks to the authors! #webperf
🎉 WebPerformance Report Week #32 is out! ✅ 🔍 Ready for next Week? Don’t miss out! ⚡ Web Performance Report: 👉 webperformancereport.com 🛡️ HTTP Security Report: 👉 webperformancereport.com/httpo/ #webperf #corewebvitals #ux #seo #cybersecurity #websecurity
👏Hey everyone! All our WebPerformance Reports are set for Sunday’s delivery! Our test report for @googlecloud shows need improvement, meaning users may face slower loading and interaction delays: 🟡 LCP 🟢 CLS 🔴 INP 👉 webperformancereport.com/report/wpt/250… #webperf #crux #ux #seo #cloud
Websites: organic traffic is declining because of AI features Google: no you’re wrong, search queries are increasing and clicks are higher quality 😵💫
Great news! 🎉
Want to debug websites in Safari on Mac or iOS? You need the Safari Web Inspector! 🐛 Debug CPU and memory 🚶 Step through JavaScript code 📚 View log output 📱 Inspect websites on your phone debugbear.com/blog/safari-de…
Barry Pollard @tunetheweb
6K Followers 896 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 #100DaysOfPerf It's called Twitter
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 🎗️ h... @DanShappir
8K Followers 3K Following Principal Engineer @Sisense. Tech conference speaker. Host on @JSJabber podcast. Invited Expert W3C #WebPerf Working Group. 🇮🇱
Noam Rosenthal 🦋 n... @nomsternom
2K Followers 2K Following Doing web platformy stuff at @ChromiumDev (and sometimes responding to Israeli politic nonsense in Hebrew because I can't help it)
Tim Vereecke @TimVereecke
2K Followers 957 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 968 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 | Co-Founder @perfreviews_ | @GoogleDevExpert in #WebTech | @cloudinary Ambassador
Gilberto Cocchi @gilberto_cocchi
632 Followers 581 Following I am a websites dietician, passionate about #webperf, focusing on #webvitals in Google. Opinions are my own. Staff Web Ecosystem Technical Consultant @Google.
Beth @c_beth34
259 Followers 3K Following
Lucy @QE3Fb55Z77lBmiJ
43 Followers 1K Following
Garnett Goyette @garnett4026
33 Followers 2K Following
Sapien 🇵🇸 @IamCarTKN
174 Followers 1K Following
Tech Greg @TechGregNYC
4K Followers 3K Following Tech Commentator | EV Enthusiast | AI | Devices | Marathon Runner | Father of 2 | Follow for reviews and insights!
Nada Sa. @shortcuttolive
137 Followers 580 Following Information technology - BI developer-@Mawhiba alumna-interested in #Blockchain #AI
Chickie-Pop-Tx @txdeever
270 Followers 2K Following Interests include web, health/fitness, finance and travel. Opinions are my own, RTs not endorsements.
Qexba @Qexba34014
1 Followers 46 Following
Qalber @Qalber0555403
20 Followers 888 Following
Payton Ward @ward_payto56173
75 Followers 2K 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
Owen Gaudion @OwenGaudion
19 Followers 106 Following Technical SEO Developer @boxchilli, making the internet a quicker place for all, one website at a time.
Bartek Miś @bartek_mis
249 Followers 489 Following CEO/CTO at Studio Sidekicks / Bigger Picture. Web Performance Expert.
Ross Weissnat @weissnat35013
74 Followers 2K Following
DANIEL MIHALACHE @DANIELMIHA55590
0 Followers 8K Following
pawelpokrywka.eth @pawel_pokrywka
87 Followers 973 Following
Ernestine @r_ernestine81
254 Followers 3K Following
saddam hossain @saddambd10
217 Followers 6K Following Web 🌐 Development Simplified • Frontend Web Developer • Learning and Building ( Javascript, React.js,Next.js )🚀 • Simpler threads • Join the journey🤝
Bridgette Price @bridgette_80887
95 Followers 1K Following
Miguel Garcia @MLinesCodes
22 Followers 439 Following Software Engineer | IA | Graphic Designer | Technology Lover
Vamsi - That web perf... @VamsiWebPerf
19 Followers 92 Following On a journey to save the planet one byte at a time #webperf #optimisations
Save Mohammed Family ... @MohammedAltall9
729 Followers 4K Following - I will continue to spread our suffering from the heart of Ga🍉z to the free world. - To support my family instagram ( Hamada_altalla ).
Nes Lad. @NesLad
12 Followers 2K Following
Emery Jast @EmeryJast52318
1 Followers 54 Following
Sig4Ever @sig4_ever
6 Followers 26 Following
SandySteinbeck @leGMb53mx1i3b
105 Followers 1K Following
Rajeshwar Singh @rajeshwarkohli
4 Followers 336 Following
WebExpo Conference - ... @webexpo
5K Followers 1K Following The web event of the year! 📆 May 27-29, 2026 📍 Lucerna Palace in Prague 🎟 Tickets on sale now at https://t.co/J2bjH0Mznz
Usama Masood @usamasood
118 Followers 422 Following Entrepreneur , World explorer • Founder @WPQuik• #WordPress • Web Performance & Security Geek 🇵🇰🇲🇾🇸🇦🇦🇪🇶🇦🇹🇷🇵🇹🇪🇸🇫🇷🇧🇪🇳🇱🇩🇪🇦🇹🇨🇭🇮🇹
Shosyt @ShosytMefX
44 Followers 4K Following
Nadia Makarevich 🇺... @adevnadia
4K Followers 221 Following 📝 DeveloperWay: https://t.co/rxBF0rSmhl 📘 Advanced React book: https://t.co/b0fbhBRUcr 📘 Web Performance Fundamentals: https://t.co/FL84OZwMiG
Øredev @oredev
4K Followers 4K Following Øredev is an International conference for software developers, taking place in Malmö, Sweden! Mark your calendar for this year's edition: 5-7 November 2025 🌟
Toasew @Toasewo_umG
77 Followers 5K Following
Joachim B. Auster @joachim_auster
202 Followers 297 Following Systematisiertes Wachstum, Digitalisierung, Mindset, Berge & Sport | 🏃♂️🚲🏔🥾⛷⚽-Schiri
Peakought @Peakought_B7HL
40 Followers 4K Following
Miguel Camarillo Cuel... @fidelinaymiguel
0 Followers 28 Following
Benjamin @bfzli
639 Followers 777 Following Building @goenvless, @tryminiapps, @benkcohq, @gistsdotgg 👀 Also as a Software Engineer at @azwedocom, @modulify 👨💻
Anne @anne_lowery19
185 Followers 3K Following
Page Speed Group @pagespeedgroup
3 Followers 54 Following Premium Web Performance Optimization for Shopify Websites
Maciej Cierpikowski @MaciejCier62342
1 Followers 36 Following
Slethur @SlethurGP2zs
5 Followers 405 Following
Barry Pollard @tunetheweb
6K Followers 896 Following Chrome Dev Rel helping make the web go faster!. All opinions my own. I’m primarily on 🦋 these days.
Addy Osmani @addyosmani
353K Followers 2K Following Engineering leader, @GoogleChrome • Author • Great user, developer & AI experiences • @ChromiumDev @ChromeDevTools • @GoogleDeepMind
Kent C. Dodds ⚡ @kentcdodds
293K Followers 383 Following Improving 🌎 with quality software · Husband, 5x Dad, Latter-day Saint, Dev Educator, MVP ⚡️ 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 #100DaysOfPerf It's called Twitter
Jake Archibald @jaffathecake
105K Followers 2K Following Developer of sorts at @firefox. No thought goes unpublished. He/him. Also jaffathecake on Mastodon, bsky, Threads etc.
Lee Robinson @leerob
190K Followers 735 Following Teaching developers @cursor_ai, previously @vercel
Wes Bos @wesbos
411K Followers 2K Following Fullstack JS Dev ❯ https://t.co/6heZ7gZqg1 ❯ https://t.co/lOo3xh23G1 ❯ https://t.co/XYbxq79WBS ❯ Posts 🔥 Tips ❯ Co-hosts @SyntaxFM
Gergely Orosz @GergelyOrosz
289K Followers 3K Following Writing @Pragmatic_Eng, the #1 technology newsletter on Substack. Author of @EngGuidebook. Formerly Uber & Skype.
Theo - t3.gg @theo
243K Followers 4K Following Full time CEO @t3dotchat. Part time YouTuber, investor, and developer
Chrome for Developers @ChromiumDev
418K 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 🎗️ h... @DanShappir
8K Followers 3K Following Principal Engineer @Sisense. Tech conference speaker. Host on @JSJabber podcast. Invited Expert W3C #WebPerf Working Group. 🇮🇱
Noam Rosenthal 🦋 n... @nomsternom
2K Followers 2K Following Doing web platformy stuff at @ChromiumDev (and sometimes responding to Israeli politic nonsense in Hebrew because I can't help it)
DebugBear @DebugBear
2K Followers 264 Following Monitor page speed and Core Web Vitals in the lab and with real user data.
jhey ʕ•ᴥ•ʔ @jh3yy
135K Followers 147 Following ⚡️ you bring the ideas, I show you how to make them 👨🍳 Staff Design Engineer @shopify (ex @google, @vercel) 📚 course waitlist 👉 https://t.co/DtDQ0KAxsi
Tim Vereecke @TimVereecke
2K Followers 957 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
283K Followers 3K Following opinions my own. Director of Eng- Web, iOS, Android & Multiplat Infra @google, O'Reilly Author • https://t.co/HhzYWwxYAH, https://t.co/SOjL0RQsDl she/her BLM
ThePrimeagen @ThePrimeagen
297K Followers 1K Following skill issues: 🟩⬛️⬛️⬛️⬛️⬛️(69/420) https://t.co/qWJnB6p4EP https://t.co/IwY3FTx1ZE https://t.co/TYJ6aSpwYs
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_
55K Followers 2K Following Head of Design @Cursor_ai. Early @NotionHQ, @Stripe, built startups. I make a world where anyone can make software. Aspiring k-pop idol.
Ben Dicken @BenjDicken
12K Followers 618 Following databases @planetscale Some stuff I've written: - https://t.co/YpfkF0JIKG - https://t.co/8OpZ7wtZWB - https://t.co/Xfx1AqbaeS
Chris Wilson (@cdub@m... @cwilso
7K Followers 1K Following World Wide Web Shaman. Techno-pessimist. Web Standards Tech Lead at Google. Freethinker. He/him.
contentport @contentport
844 Followers 2 Following the best way to create beautiful, authentic content // built by @joshtriedcoding and @jomeerkatz
Liam Griffin @liam_at_shopify
13K 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
15K Followers 5K Following Senior AI reporter @Verge. 5+ years covering the industry's power dynamics, societal implications & the AI arms race. Previously @CNBC. Signal: haydenfield.11
Dave Gillhespy @yodasw16
511 Followers 363 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
972 Followers 672 Following Catherder, foodie, college football fan. #GoDawgs. I work on @firefox Performance. #mozilla #webperf.
Martin Stepanek 🏳�... @techseovitals
221 Followers 263 Following 👨💻 Technical SEO & Web Performance Consultant 🟣 Not active here anymore, find me on LinkedIn ⤵️
Sébastien Chopin @Atinux
28K Followers 2K Following Creator of @nuxt_js. Founder of @nuxtlabs (acq. by @vercel). Angel investor.
Scrimba @scrimba
46K Followers 300 Following Whether you're just getting into tech or levelling up your coding skills, we're here to help you shine. What will you build? https://t.co/tKOyDCtOJn
Omri Ariav @omriariav
2K Followers 2K Following Product manager @taboola, into tech, nonleague soccer, and F1. Also a father. Opinions are my own and do not represent anyone I work for or with 🇮🇱
Tristan @sf_tristanb
995 Followers 759 Following 👨💻🌈 CTO @ Wamiz (Nestlé). Created https://t.co/g7WLnltHxL because I believe all gamers should play with a team
Google Gemini App @GeminiApp
197K Followers 38 Following The Gemini app turns research into reality, bringing frontier AI experiences like Veo 3, Deep Think, and more to hundreds of millions of people.
Josh Woodward @joshwoodward
29K Followers 753 Following VP, @Google @GoogleLabs @GeminiApp @GoogleAIStudio
Brett Sinclair @BrettSinclair
410 Followers 632 Following Usability, Accessibility and interface consultant @Mahi_Mahi
Bootstrap @getbootstrap
538K Followers 21 Following Official account for Bootstrap, a toolkit providing simple and flexible HTML, CSS, and JS for popular UI components and interactions. Tweets by @mdo.
Matheus Albuquerque @ythecombinator
1K Followers 2K Following staff SWE, into compilers, rendering engines & UX • tweeting in pt-BR and en-US • opinions are my own
Emprendedores @Emprendedores
268K Followers 715 Following Cuenta oficial de Emprendedores, la plataforma de economía y gestión de empresa líder en España.
Google DeepMind @GoogleDeepMind
1.2M Followers 279 Following We’re a team of scientists, engineers, ethicists and more, committed to solving intelligence, to advance science and benefit humanity.
Andrew Ng @AndrewYNg
1.3M Followers 1K Following Co-Founder of Coursera; Stanford CS adjunct faculty. Former head of Baidu AI Group/Google Brain. #ai #machinelearning, #deeplearning #MOOCs
André Bandarra @andreban
817 Followers 437 Following Developer Relations Engineer for Chrome and the Web at @Google, technology addict.
@courtneyr_dev 🌻 #... @courtneyr_dev
16K Followers 9K Following 🥑 #OpenSource #DevRel Advocate @GoDaddyPro Ⓦ #WordPress Training Team Faculty 👩🏻🏫 Frm: #WebDev bootcamp faculty 👩🏻💻 #Community 🎻 👩🏻🌾
Palette @palette_dev
2K Followers 1 Following Monitor interaction/pageload/react latency and JS profiles from end users. It's like chrome devtools, in production. Get a Demo 👉 https://t.co/3KdJs97MDR
Can I Use... @caniuse
7K Followers 1 Following Compatibility tables for features in HTML5, CSS3, SVG and other upcoming web technologies
Tomek Sułkowski @sulco
26K Followers 483 Following 🅱 Founding Engineer & UX Lead @boltdotnew/@stackblitz 💡 Bolt tutorials & tips Heavily divergent thinker (but will eventually get back to the point)
Lindsey Shepard @ShepardLindsey
512 Followers 1K Following CMO @Mozilla. Formerly @facebook @goldieblox
Randima Fernando @Randima_F
197 Followers 1 Following • Co-Founder, Center for Humane Technology @HumaneTech_ • Board Member, @Spirit_Rock • Former Executive Director, @Mindful_Schools • Not really here 🙃
Bsmth, the bsmth guy @docs_guy
424 Followers 439 Following Technical writer on the MDN team at Mozilla's @MozDevNet. I write about web platform technologies and open source software.
Victoria Wang @violasong
3K Followers 369 Following Art and code, open mind, open heart. UX designer for Firefox. Previously @FirefoxDevTools, @Neocities. She.
UXmatters @uxmatters
120K Followers 100 Following Web magazine about user experience matters, providing insights and inspiration for the user experience community
Sketech | Raw Dev Not... @SketechWorld
4K Followers 44 Following Unfiltered Dev Notes | Follow for code tricks that feel like a Twitter Thread
Nina @HeyNina101
9K Followers 522 Following Helping 1M people build with AI | Building AI'm In • Free AI Hub for Builders | + Growing Sketech • Unfiltered Notes Devs Love
Stefan Wintermeyer @wintermeyer
2K Followers 165 Following Father of two who tells terrible dad jokes. Mediocre programmer. Old school full stack guy. Topics: Web (Phoenix + Rail), VoIP (Asterisk) and Social Engineering
Marcel Kargul @marcelkargul
33K Followers 543 Following CEO @kargulstudio / Not just design. We build apps, sites, brands, and products end-to-end.
Marques Brownlee @MKBHD
6.2M Followers 480 Following Web Video Producer | ⋈ | Pro Ultimate Frisbee Player | Host of @WVFRM @TheStudio
Regy @regyperlera
5K Followers 1K Following Design @airbnb by day • @juliennecooking by night · Previously @snap @nike @square • Founded @seasons_ny 🇸🇻
Whole Grain Initiativ... @eatwholegrains
408 Followers 263 Following The Whole Grain Initiative aims to to promote the increase of whole grain consumption.
Quince @onequince
304 Followers 2 Following High quality essentials. Radically low prices. Because quality shouldn’t be a luxury.
cλbai @_cybai
855 Followers 5K Following Taiwanese, never Chinese! λ. @ServoDev contributor, Mozillian. Opinions are my own. he/him
pawelpokrywka.eth @pawel_pokrywka
87 Followers 973 FollowingTrends for United States
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