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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 @[email protected]
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We kick off with @programmingart.bsky.social showing us how browsers REALLY load web pages to a full room! 🤡 fosdem.org/2025/schedul...

submitted 26 days ago • 2 comments

HTTP/1.1/2/3 are all present in unison on the web today, w/ a 21/70/9 split. Or is it? @programmingart.bsky.social will shed the light on the @httparchive.org Web Almanac data, and the reality of the protocol's adoption. Join us to hear him share findings this Thursday 🔗 ⬇️ bsky.app/profile/henr...

submitted 45 days ago • 0 comments

Hmm, interesting - looks like Chrome added support for the ORIGIN frame for HTTP/3 (eliminating the need for a DNS lookup before coalescing connections). blog.chromium.org/2024/12/maki...

submitted 51 days ago • 1 comment

Web performance calendar day 29 with @patmeenan.com on how to ship a production-quality dictionary compression implementation to reduce HTML/JS/CSS response sizes dramatically (as in 60-90% dramatically!) calendar.perfplanet.com/2024/getting...

submitted 59 days ago • 0 comments

Web performance calendar day 21 with @timvereecke.bsky.social giving us the gift of UNO (Unattributed Navigation Overhead) - an insight into the blind spot gaps between TTFB components calendar.perfplanet.com/2024/uno/

submitted 67 days ago • 1 comment

For this year's #webperf calendar, I wrote "Top 8️⃣ things I want in the Devtools Network Panel". I often struggle to debug modern networking features in browsers (like DNS HTTPS records, 0-RTT, and Happy Eyeballs 👀) and have some ideas on how to improve that! calendar.perfplanet.com/2024/top-8-t...

submitted 73 days ago • 2 comments

My meme-game is on-point for my (first) perfcalendar 2024 submission @stoyan.org!

submitted 78 days ago • 0 comments

This year, I again had the honour of authoring the HTTP chapter of the Web Almanac: almanac.httparchive.org/en/2024/http It's full of interesting stats on technologies like HTTP/3, DNS HTTPS records, preloads, 103 Early Hints and the FetchPriority API. It also has Pirates 🏴‍☠️ and Marry Poppins 🌂!

submitted 79 days ago • 2 comments

the blog post writeup of this is so good eieio.games/blog/writing...

submitted 82 days ago • 2 comments

Some of you complain that PageSpeed Insights is a bit unrealistically show for the Lighthouse test. The PSI servers are a bit underpowered so we're changing the throttling, which should make the Performance score go up when this rolls out in the next few weeks. github.com/GoogleChrome... 🧵 1/5

submitted 84 days ago • 4 comments

It's December 1st, and you know what that means: For the next 24 days, we'll publish articles about HTML by 24 authors. You can read them on the website or subscribe to the RSS channel. Enjoy! htmhell.dev/adventcalend...

submitted 88 days ago • 2 comments

My #wls2024 talk is available! I delved into advanced tuning techniques to make a modern website lightning fast. Using lots of charts and data, I showed how they helped make scalemates the fastest (and largest) modeling website in the world. www.youtube.com/watch?v=rjUr... #webperf

submitted 92 days ago • 1 comment

My talk from this year's We Love Speed is on YouTube! 👇 In "Tight Mode: how browsers REALLY load web pages", I take a very deep/very nerdy dive into why browsers sometimes intentionally delay loading resources, why they all do it differently, and why they should *stop clowning around* 🤡 #webperf

submitted 93 days ago • 5 comments

I've submitted two proposals for this: - How browsers REALLY load web pages - A First Foray into Compression Dictionaries You, dear reader, should also submit something 😉

submitted 94 days ago • 2 comments

I've done a lot of research myself exposing inconsistencies in browser/server implementations of "standardized" features. Below is another excellent example of how even cookies are broken to an incomprehensible degree... all without being properly documented. We need to start doing better.

submitted 94 days ago • 0 comments

We're excited to share that Mozilla and @wikimedia.bsky.social will once again be hosting a #webperf devroom at @fosdem.bsky.social 2025! The call for participation is open until December 1st. Find details on how to submit your proposal at wiki.mozilla.org/Performance/... #fosdem #cfp

submitted 101 days ago • 3 comments

Fellow #perfnow attendee, the PerfPlanet advent calendar is looking for articles for the 2024 edition. Please come talk to me if you’re considering an idea for a post but you’re not sure and you need a second opinion calendar.perfplanet.com/contribute/

submitted 105 days ago • 0 comments

@programmingart.bsky.social now on stage talking about #webperf tools

submitted 106 days ago • 0 comments

Anyone interested in seeing how Compression dictionaries work for your dynamic content (live)? I'm experimenting with a Cloudflare worker that can proxy a site and apply a compression dictionary to the document responses. For example, CNN HTML payloads are 50-65% smaller: cnn.patrickmeenan.com

submitted 107 days ago • 2 comments

Planet Performance Calendar is a one-article-a-day Advent -style publication that runs in December since 2009, focused on Web Performance. If you (or anyone you know) want to share your experience, tool, research, rant with the #webperf community, please reach out calendar.perfplanet.com/contribute/

submitted 111 days ago • 0 comments

Trump has relentlessly attacked trans people throughout his campaign. Will Vercel and Next.js distance themselves from his repugnant comments?

submitted 112 days ago • 29 comments

In case you missed it, this episode of JavaScript Jabber podcast with @programmingart.bsky.social about Web network and protocol performance was awesome! www.youtube.com/live/kZXAbN0... #webperf

submitted 114 days ago • 0 comments

My full post history is back on twitter (x.com/programmingart), but in case you're struggling to remember where you might know me from, it's likely from this article series on HTTP/3 and QUIC (and other content on Web performance and protocols) :)

submitted 120 days ago • 0 comments

I'm building a web perf starter pack but I'm still looking for folks to add - please let me know who I'm missing because I haven't found them all on bsky yet go.bsky.app/RVWSVqe

submitted 121 days ago • 11 comments