Robin Marx @programmingart
Network protocols (HTTP/2, HTTP/3, QUIC) and Web performance @Akamai. PhD. Dad. Longsword fencer. He/Him. @programmingart.bsky.social linkedin.com/in/rmarx Hasselt, Belgium Joined June 2009-
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wrote the same word-counting program 5 times, each faster than the last best result: 494× faster than my first Python version — by using SIMD in C all are O(n), but some squeeze far more from the CPU and memory!
Sometimes servers don't send HTTP response data in the right order. Our new article explains why request priority matters for HTTP/2 and HTTP/3 connections, and how poor server-side support can impact page speed. debugbear.com/blog/http-prio…
We're live right now, come join us!
We're live right now, come join us!
📢 Excited to have @TimVereecke join me Wednesday to talk shop about 2025 and details from a recent blog post from he and @programmingart re: performance in 2025. Join us! ✨ SPDY STREAM 003 ✨ 📆 Wed July 9th ⏰ 1p EST 🔗 bit.ly/spy-stream-003 🔗 blog post:…
11.9 Light-years from home. 6th grade science teacher. 1 chance to save us all. Watch the trailer for Project Hail Mary – based on the novel by Andy Weir, starring Ryan Gosling, and directed by filmmakers Phil Lord and Christopher Miller. Only in theaters and IMAX - 3.20.26
Is everyone fucking nuts? Did we actually believe that after decades and decades of studying the brain and coming up with next to zilch, that a handful of rich, arrogant midwits in Silicon Valley would come to a full understanding of consciousness and deliver to us artificial…
Is everyone fucking nuts? Did we actually believe that after decades and decades of studying the brain and coming up with next to zilch, that a handful of rich, arrogant midwits in Silicon Valley would come to a full understanding of consciousness and deliver to us artificial…
Please stop building SPAs. Just because your pages all have the same header and footer, it does not mean you have a single page app. Over 90% of the SPA projects I’ve worked on should not have been SPAs (and were markedly worse because of it).
The Big Short stays wildly rewatchable. Fast, furious, and somehow makes finance thrilling—stacked cast firing on all cylinders.
The Big Short stays wildly rewatchable. Fast, furious, and somehow makes finance thrilling—stacked cast firing on all cylinders. https://t.co/XrdiW4eugF
Check out this cool shit
Dave Täht died yesterday. He was one of the unsung heroes of the Internet, and a close friend of mine who I will miss very badly. Dave, known on X as @mtaht because his birth name was Michael, was a true hacker of the old school who touched the lives of everybody using X. His…
Day 011 #100DaysOfPerf: I shared the hpbn book (Day 002) that wall about levelling up on HTTP. Well, let's look at CURRENT HTTP data from the @HTTPArchive's Web Almanac. On deck ✨ HTTP ✨ by none other than @programmingart. Let's take a look: 🧵⬇️ 🔸 almanac.httparchive.org/en/2024/http as…
🆕 Introducing the new Latest view for Treo Site Speed: treo.sh/sitespeed • 6 months of data updated every week • newest metrics for LCP type, LCP subparts, and RTT • milliseconds option • multi-select for navigation types • and redesign of the charts
kids today will never know the pleasure of exporting a Photoshop design to many little GIFs and meticulously stitching them together in HTML4 tables
kids today will never know the pleasure of exporting a Photoshop design to many little GIFs and meticulously stitching them together in HTML4 tables
Highly recommended read on how complex networking is when designing a game.
Highly recommended read on how complex networking is when designing a game.
New in @ChromeDevTools: Accurately emulate CPU performance of a low/mid tier phone with Automatic CPU throttling calibration! 📲 This feature calculates slow-downs for your specific device. Wanted this for years! We just shipped it.
Daily uploads and a two year review! rumarchive.com/blog/2025-01-2… #webperf
🧠 Thoughts on front-end frameworks and upgrade-hell: csswizardry.com/2025/01/build-…
Such a good write-up by @apenwarr apenwarr.ca/log/20170814 (I low-key wish LLMs were this good at synthesizing)
I was a TA for Stanford's 2018 class on cryptocurrency. I helped teach the math of blockchain, cryptographic primitives that make up Bitcoin, smart contracts etc. But every office hours I would field questions from struggling students asking which coin they should buy. I kept…
I was a TA for Stanford's 2018 class on cryptocurrency. I helped teach the math of blockchain, cryptographic primitives that make up Bitcoin, smart contracts etc. But every office hours I would field questions from struggling students asking which coin they should buy. I kept…
We just published a new free tool: test your website's Time to First Byte metric across 10 global test locations! 🚀 Check server response time 💻 View CDN cache status 🌎 See what region the response was served from debugbear.com/test/ttfb
Hussein Nasser @hnasr
81K Followers 647 Following Backend and Database Courses https://t.co/Qonec4YftL YouTube https://t.co/FfDg8cnVCI Author of https://t.co/PcX2tDsIxC Engineer @esri
Addy Osmani @addyosmani
353K Followers 2K Following Engineering leader, @GoogleChrome • Author • Great user, developer & AI experiences • @ChromiumDev @ChromeDevTools • @GoogleDeepMind
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.
David Bombal @davidbombal
169K Followers 690 Following YouTube: https://t.co/xGPVEj6ULN Discord: https://t.co/GZI30F45va Website: https://t.co/MpcS9ylBrV
Matteo Collina @matteocollina
49K Followers 4K Following @platformatic Co-Founder & CTO, @nodejs TSC Chair, Lead maintainer @fastifyjs, Board @OpenJSF, Conference Speaker, Ph.D. Past: @nearform. Views are my own.
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
Kazuho Oku @kazuho
28K Followers 2K Following lead developer of H2O HTTP server / works at @fastly / HTTP, TLS, QUICといった通信プロトコルを実装したり、国際標準化にたずさわったり。ダジャレをつぶやきつつ、インターネットを速くするのが仕事です
Patrick Meenan @patmeenan
9K Followers 338 Following Web performance @googlechrome (tweets are my own, not those of my employer). ☁️: @patmeenan.bsky.social 🧵: patrick.meenan
Surma @DasSurma
38K Followers 1K Following DX at @ShopifyEng. Web Platform Advocate. Craving simplicity, finding it nowhere. Internetrovert 🏳️🌈 He/him. @[email protected]
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
Lucas Pardue @SimmerVigor
3K Followers 402 Following HTTP/2, HTTP/3 and QUIC @Cloudflare. Co-chair of IETF QUIC WG. Thoughts are my own. Also simmervigor on bsky and mastodon
🇺🇦 Ingvar Stepa... @RReverser
8K Followers 1K Following OSS devtools, ex-Google Chrome, ex-Cloudflare, these days actively working in the WebAssembly land. Not here anymore, find me on Bluesky.
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.
🎻 EricLaw ➡️ B... @ericlaw
14K Followers 3K Following I moved to https://t.co/GaDsKjTVcU Twitter died. X is the Nazi bar. Hope fights in the dark.
APNIC @apnic
18K Followers 1K Following APNIC is an open, membership-based, not-for-profit organization providing Internet addressing services to the Asia Pacific. Retweets ≠ endorsements.
Aaron A. Glenn @networkservice
5K Followers 3K Following "packet processing & packet processing accessories" my tweets are mine alone human rights over property rights. see also discuss . systems at this username
Harry Roberts @csswizardry
67K Followers 446 Following 🚀 Independent Web Performance Consultant • Speaker • Google Developer Expert, Web Performance • Accepting new clients • https://t.co/dfDc69bpeD
apenwarr @apenwarr
15K Followers 2K Following wvdial, bup, sshuttle, netselect, popularity-contest, redo, gfblip, GFiber, and now @Tailscale doing WireGuard mesh. Top search result for "epic treatise."
Nick Banks @gamernb
429 Followers 131 Following Networking Developer Lead @Microsoft Maintainer of MsQuic My words are my own. https://t.co/Kyz9OjlJHV
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)
Slirnau @slirnau87675
1 Followers 50 Following
nemo @samuvodi
31 Followers 1K Following
Corn Woman 🌽 @WomanCorn
2K Followers 2K Following Cyber woman taking a vitamins from corn Bluesky: https://t.co/t3ir8JiBfE
TS The Techie @just4botsts
35 Followers 238 Following Tech Enthusiast 📡🤖 | Innovating in AI and Robotics!
Djordje Stankovic @djole_stankovic
4 Followers 64 Following
Eshaan Modi @eshaan_modi
50 Followers 106 Following
Pratik Solanki @Pratik_Soul_20
4 Followers 39 Following
RishikeshK @Rishike89765470
73 Followers 765 Following OPEN SOURCE wannabe| | WH40K right now | 2025 Organizer @HackByte3.0 | want to become gilfoyle with this puny dumb brain
cyberrooster @mediclettuce
2 Followers 85 Following
Erwin Hofman (perceiv... @blue2blond
524 Followers 50 Following Google Developer Expert. Empowering agencies & e-commerce to address PageSpeed + Core Web Vitals themselves 🎓 via audits and training + building https://t.co/dr1KXqh9AC
Paul Davis @XblHabu12
2 Followers 413 Following
Adityavir Singh @adityavir_
0 Followers 11 Following
Ricky Ledner @RLedner72888
26 Followers 2K Following
Erica Z @fs3343791
196 Followers 3K Following Trump 👍 GEN X. ❤️ 🫡Knowledge keeper 🤯. 😂COMPLETELY IN ❤️ with a man I will never meet.😭 (🇺🇸) Yep. I got problems (😥)
Nafuin @Nafuin1643
22 Followers 705 Following
Mary @Mary49597828
291 Followers 5K Following
SivaKarthikeyan @seesiva
2K Followers 2K Following My career and life built beautiful by god. The views expressed by me are my own.
Maximus2A @maximus2_a50030
0 Followers 6 Following
Angel @Angel_foxxo
950 Followers 159 Following I do stuff with Source2, mostly CS2: Dogtown, Source2 map decompiler and RadGen
AnnabelleThacD8 @AnnabelleThacD8
120 Followers 215 Following
Ysirbe @Ysirbe4992
80 Followers 1K Following
Serdalt @Serdalt5750706
49 Followers 2K Following
Nithish Kumar @kumarnithish31
0 Followers 51 Following
Vince @pfeffervince
11 Followers 84 Following
Ceashairf @CeashairfHrE7
71 Followers 3K Following
Nova Funk @funk_nova94323
5 Followers 127 Following
Lizzie Schuster @LizzieSchu142
2 Followers 125 Following
Ybluipi @Ybluipi4018
54 Followers 1K Following
Superfolio @joinsuperfolio
7 Followers 172 Following The only link devs need to share to show everything they are and create.
Axel_jg @KulinskiArkadi
101 Followers 780 Following RIPE NCC Cert.Ekspert ds. Bezpieczeństwa IPv6 https://t.co/NoCwkV7ps9 (admin1/4) https://t.co/7M3DaAT5jo and Axelo A.K.J.G58-500
MarvinNorthe87f @northe87f3716
1 Followers 5 Following
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.
Addy Osmani @addyosmani
353K Followers 2K Following Engineering leader, @GoogleChrome • Author • Great user, developer & AI experiences • @ChromiumDev @ChromeDevTools • @GoogleDeepMind
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.
David Bombal @davidbombal
169K Followers 690 Following YouTube: https://t.co/xGPVEj6ULN Discord: https://t.co/GZI30F45va Website: https://t.co/MpcS9ylBrV
Cindy Sridharan @copyconstruct
41K Followers 160 Following
Kazuho Oku @kazuho
28K Followers 2K Following lead developer of H2O HTTP server / works at @fastly / HTTP, TLS, QUICといった通信プロトコルを実装したり、国際標準化にたずさわったり。ダジャレをつぶやきつつ、インターネットを速くするのが仕事です
Matthew Prince 🌥 @eastdakota
114K Followers 317 Following A little bit geek, wonk, and nerd. Repeat entrepreneur, recovering lawyer, and former ski instructor. Co-founder & CEO of Cloudflare (NYSE: NET).
Patrick Meenan @patmeenan
9K Followers 338 Following Web performance @googlechrome (tweets are my own, not those of my employer). ☁️: @patmeenan.bsky.social 🧵: patrick.meenan
billions of packets @justinesherry
10K Followers 2K Following Computer person. I like middleboxes, systems, and Internets. Assistant Prof @ AS9. she/her, [email protected], @[email protected], 🇺🇲❤️🇵🇹
Colm MacCárthaigh @colmmacc
35K Followers 2K Following VP / Distinguished Engineer at Amazon Web Services. Also: Open Source and Apache, Cryptography, Irish Music, mediocre Photography.
Brendan Gregg @brendangregg
47K Followers 156 Following Makes things fast. Expert in computer performance and eBPF. Intel Fellow, ex-Netflix. Created flame graphs. Aussie. Opinions my own. [email protected]
Surma @DasSurma
38K Followers 1K Following DX at @ShopifyEng. Web Platform Advocate. Craving simplicity, finding it nowhere. Internetrovert 🏳️🌈 He/him. @[email protected]
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
Lucas Pardue @SimmerVigor
3K Followers 402 Following HTTP/2, HTTP/3 and QUIC @Cloudflare. Co-chair of IETF QUIC WG. Thoughts are my own. Also simmervigor on bsky and mastodon
🇺🇦 Ingvar Stepa... @RReverser
8K Followers 1K Following OSS devtools, ex-Google Chrome, ex-Cloudflare, these days actively working in the WebAssembly land. Not here anymore, find me on Bluesky.
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.
🎻 EricLaw ➡️ B... @ericlaw
14K Followers 3K Following I moved to https://t.co/GaDsKjTVcU Twitter died. X is the Nazi bar. Hope fights in the dark.
Rob Palmer @robpalmer2
10K Followers 2K Following JavaScript Infrastructure & Tooling at Bloomberg. Co-chairing @TC39. Likely to tweet tech stuff about JS & software performance. Opinions are my own.
APNIC @apnic
18K Followers 1K Following APNIC is an open, membership-based, not-for-profit organization providing Internet addressing services to the Asia Pacific. Retweets ≠ endorsements.
Ben Visness @its_bvisness
2K Followers 161 Following Follower of Jesus. Lead of the Handmade Network (@handmade_net). WASM engineer at @mozilla. Mentor for @frc2175.
Bones @BonesaiDev
7K Followers 587 Following simulations and gamedev Currently working on https://t.co/MjUvxSPs3c
Łukasz | Wookash Pod... @wookash_podcast
5K Followers 446 Following the most technical podcast™ see for yourself https://t.co/3408wX9n30
Eskil Steenberg @EskilSteenberg
6K Followers 270 Following C, Game design, Story telling, and progress. Work @quelsolaar https://t.co/xHje5WbRyi
Better Software Confe... @BetterSoftwareC
4K Followers 12 Following Software is getting worse. We're here to make it better. 2025 VODs currently releasing on YT: https://t.co/kitqaYA43w
Project Hail Mary @projecthailmary
10K Followers 4 Following From filmmakers Phil Lord and Christopher Miller comes #ProjectHailMary, starring Ryan Gosling. Only in theaters March 20, 2026.
Angel @Angel_foxxo
950 Followers 159 Following I do stuff with Source2, mostly CS2: Dogtown, Source2 map decompiler and RadGen
Kai @ CowaBummer @kainosaurus_
119K Followers 486 Following 27 | they/them 🏳️⚧️ | DemiPan 🏳️🌈 | Cosplayer | Artist | Fitness | Hobbyist | ENFP-T
Ryan Fleury @ryanjfleury
17K Followers 116 Following Digital Grove | Working on the RAD Debugger at @radgametools / @epicgames (opinions my own)
Wasm I/O @wasm_io
2K Followers 407 Following Your WebAssembly Conference / Next edition: 19-20 March 2026 - Barcelona, Spain. Organized by @sergialmar
Matt Rife @mattrife
643K Followers 1K Following Stand Up Comedian/Actor/Person. NEW NETFLIX SPECIAL OUT NOW! Insta: MattRife. TOUR DATES👇🏼
Thehullboy @Thehullboy1
97K Followers 183 Following The youngest person ever to run the full length of the UK ❤️
Sasha K @a_kovalev
298 Followers 164 Following
TeamSpeak @teamspeak
238K Followers 638 Following ✨ the ol' reliable ✨ The privacy-first voice and chat platform. Decentralized. Secure. Yours to customize. Dev Updates: @teamspeakdev
Keith Cirkel @Keithamus
3K Followers 0 Following Software Cyber Shepherd. Find me on bsky or mastodon. I don't interact here.
Sergi Almar 🍃 @sergialmar
5K Followers 656 Following Independent Software Engineer. Spring Trainer @VMwareTanzu, @apachekafka Trainer @confluentinc, @spring_io / @wasm_io organizer. Tennis Lover, Marathoner
Mehdi Kabab @piouPiouM
1K Followers 537 Following I’m a lead front-end developer @Bedrock_Stream (formerly M6Web, @CleverAge) • My book about #sass https://t.co/uzbmQjSUMY
Rob Villeneuve @viller613
906 Followers 2K Following Bearded father, leader, programmer, and data enthusiast. CTO at @wicket_io.
Mark Pashmfouroush @markpash
12K Followers 1K Following ex- Cisco,Isovalent,Cloudflare کدنویس شبکه، کرنل و سیستمهای توزیعشده فارسی زبان متولد انگلیس
gianmarco @GianmarcoSoresi
154K Followers 7K Following “you miss 100% of the shots you take” -my high school basketball coach
Lord of the Rings Mem... @TheLOTRMemes
43K Followers 1K Following I don’t know half of you half as well as I should like and I like less than half of you half as well as you deserve ~Best LOTR Memes ~ [email protected]
Josh Weinstein @Joshstrangehill
88K Followers 2K Following Simpsons, Futurama, Gravity Falls, Strange Hill High, Mission Hill & Disenchantment. Major player at the sewing store®️
Sherief, FYI @SheriefFYI
5K Followers 1 Following Performance Sisyphus. Contractually obligated to tell you that my views and opinions do not represent those of my employer.
Swords @swordscomic
45K Followers 1 Following
Grant Kot @kotsoft
8K Followers 1K Following Liquid Layers & Liquid Crystal: https://t.co/yXZexJtwCH | https://t.co/kMG3IXUSNZ | https://t.co/kOjtF6dYDb All videos real-time, no speedups.
Charles Max Wood | ch... @cmaxw
28K Followers 662 Following Join us for podcasts, meetups, conferences, and learn to become a top 1% developer at https://t.co/SVhMWUTWaN. See also https://t.co/LKoNCIM5E6
World Bollard Associa... @WorldBollard
198K Followers 21 Following The official Twitter account of the World Bollard Association™️. MERCH STORE - https://t.co/lGlBqCjY49
🏳️⚧️Graph... @GraphCrimes
104K Followers 626 Following Graph High Crimes & Misdemeanors | I barely stick to gimmick be warned | She/her
beetle moses @beetlemoses
168K Followers 555 Following https://t.co/bwoaClwLPc contact: [email protected]
Brendan Kenny @brendankenny
950 Followers 262 Following @____lighthouse and web performance at @GoogleChrome. Open source, maths, Typescript nonsense, probably some Minecraft in there somewhere.
Aymen Loukil @LoukilAymen
4K Followers 889 Following International SEO - Webperf Consultant-Founder https://t.co/NntoajJbYL https://t.co/VgepZLhuTe https://t.co/Wh29zwTMyQ - Speaker, entrepreneur.
Umar Hansa @umaar
21K Followers 1K Following • I tweet developer tips and tricks • Made https://t.co/BNg6jxTWZV • Developer tips https://t.co/8Ofj0P4de9
✨_geeknik_//✨ @geeknik
21K Followers 7K Following Human Founder⇢Deep Fork Cyber. Fuzzing from kernelspace➠uncanny valley. Latest: CVE-2025-43202
Nathan Owens @VirtuallyNathan
4K Followers 2K Following Principal Eng, Starlink Networking @ SpaceX; ex-Netflix, AWS. Software, systems, data, networking. Bike rides, hikes, nutrition/longevity, tech, etc.
Daniel Rosenwasser @drosenwasser
12K Followers 2K Following @TypeScript Principal Product Manager at @Microsoft, @TC39 Representative
Ignat Korchagin @ignatkn
1K Followers 62 Following Linux team @Cloudflare • EMBA @QuanticSchool • Founder and CEO of CVE-2016-3955 • Previously @cossacklabs and @SamsungMobile • Opinions are my own
Julien Wajsberg (comp... @jwajsberg
2K Followers 711 Following Compte en pause longue (photo CC Emmanuelle Le Grand) (he/him) Retrouvez moi sur @[email protected] et bsky
Peter Nikolow @PeterNikolow
5K Followers 5K Following Live to hack, hack to live. I'm not a pessimist, just a well informed optimist. You miss 100% of the opportunities you dont take.
Sander @sandersu1981
183 Followers 553 Following Freelance Front-end developer, WPO consultant, CSS architect
Vinicius Dallacqua @WebTwitr
877 Followers 689 Following Into browsers and agentic systems. Building https://t.co/cwNdvRsKCq and https://t.co/SPbksDxYBV Into film photography and web performance nerd.
Kazuki Higashiguchi @hgsgtk
2K Followers 2K Following Sr. Site Reliability Engineer @AutifyHq / Public tech speaker & writer / CloudNative / Kubernetes / Father of 👶.
Darrell Esau @desau13
28 Followers 45 Following Engineering director for Akamai mPulse, trying to help websites run as fast as my motorcycle.
Jean-Pierre Vincent @theystolemynick
3K Followers 474 Following Expert indépendant #webperf et archi JavaScript. Certifié éco-conception des services numériques. Orateur, formateur. @[email protected] @jpvincent.bsky.social
Eoin Brazil @eoinbrazil
2K Followers 5K Following MSC, PhD (CS). Staff Engineer @mongodb formerly @tssg_wit @ichec @idc_ul, Father and Rugby fan. He/Him. These are my own views! @[email protected]Trends for United States
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