David Ross
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cdaveross.bsky.social
David Ross
@cdaveross.bsky.social
570 followers 310 following 53 posts
PNW web-performance specialist; into cooking, craft beer & cider, otter pics, & intersectional support. (He/They)
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cdaveross.bsky.social
David Ross @cdaveross.bsky.social · Nov 16
I was lucky enough to be interviewed by #webperf community icon @henrihelvetica.bsky.social at #PerfNow 2024.
What a whirlwind conference, it's always energizing to be around this many people interested in beating back the tide of webpage bloat & inaccessible sites
Two men in hats talking in front of a streaming setup, with microphones & cameras & lights. People are walking in the background Two men in hats speaking face to face into handheld microphones in front of a streaming camera
Reposted by David Ross
reki.gay
"babies are born worshipping unknown gods" is one of the most incredible dwarf fortress bugs i have heard of. its poetry.
November 11, 2025 at 4:18 PM
Reposted by David Ross
aturls.bsky.social
Look folks gen AI videos are out in the wild so if you weren't already being careful about sharing rage bait videos then now is a great time to start

If you can't trace a video back to a trusted source then I recommend leaving it where it is, like a slice of bologna you found on the street
November 2, 2025 at 9:02 PM
Reposted by David Ross
jeeyon.bsky.social
Happy Little Sunflower
My cat Onion dressed as a Happy Little Sunflower for Halloween. He looks very angry.
October 31, 2025 at 7:33 PM
cdaveross.bsky.social
There's a sight to see, freshly published in time for #PerfNow. Talk by @tunetheweb.com , an excellent walkthrough on how to get the most out of a truly powerful tool

www.etsy.com/codeascraft/...
A speaker in front of a stage, presenting a graph of Time to First Byte before & after a speculation rules experiment, writeup at https://www.etsy.com/codeascraft/search-prefetching-performance
October 31, 2025 at 2:06 PM
Reposted by David Ross
nucliweb.net
Huge thanks to @andydavies.me for mentioning the LoAF Helpers WebPerf Snippet at @perfnow.nl!

Honored to be part of the amazing Web Performance community 🫶

🔗 webperf-snippets.nucliweb.net/Interaction/...

#WebPerf #PerfNow #Performance #LoAF #INP #CoreWebVitals
A speaker stands on stage at the Performance.now() 2025 conference, presenting a slide titled “LoAF Helpers: Advanced Debugging in DevTools.” The slide displays details about WebPerf Snippets and a highlighted URL link. The audience is seated in front of the stage, watching the presentation.
October 31, 2025 at 10:21 AM
Reposted by David Ross
tammyeverts.com
“We are the user’s line of defence” between automated tools that don’t offer accountability.

@tkadlec.bsky.social at #PerfNow
Performance expert Tim Kadlec on stage at the performance.now conference in Amsterdam.
October 31, 2025 at 9:06 AM
Reposted by David Ross
sergeyche.dev
Glad to announce that my team at @cloudflare.social released a 1.0.0 version of a cross-browser web performance testing agent that supports
Chrome, Firefox, Safari and Edge.

Thank you to @tkadlec.bsky.social for making it happen and writing most of the code so far!

github.com/cloudflare/t...
GitHub - cloudflare/telescope: Cross-browser web performance testing agent
Cross-browser web performance testing agent. Contribute to cloudflare/telescope development by creating an account on GitHub.
github.com
October 30, 2025 at 2:32 PM
cdaveross.bsky.social
It's nice to be back at the Zuiderkerk for #perfnow, having the conference in the same city & venue creates a comforting feeling of continuity.
Each morning starts with flaky croissants letting people settle in in for two days of lively talks & livelier hallway conversations. (and stroopwafel later)
October 30, 2025 at 9:09 AM
Reposted by David Ross
perfnow.nl
The #perfnow conference started! Live stream available via perfnow.nl/live-stream....
performance.now(); 30th and 31st of October, Amsterdam
On 30th and 31st of October, 2025, the sixth edition of performance.now() will take place in Amsterdam—a single track conference, covering today’s most important web performance insights.
perfnow.nl
October 30, 2025 at 8:58 AM
Reposted by David Ross
jamie.build
This little snippet made debugging view transitions a lot easier
::view-transition-group(*) { animation-duration: 3000ms; } ::view-transition-group(*) { outline: 1px solid blue } ::view-transition-image-pair(*) { outline: 1px solid yellow } ::view-transition-old(*) { outline: 1px solid red } ::view-transition-new(*) { outline: 1px solid green }
October 29, 2025 at 6:29 PM
Reposted by David Ross
stoyan.me
I co-wrote a post on the Etsy engineering blog about implementing Speculation Rules API (SRA) to prefetch product listing pages from search results. And many thanks to @tunetheweb.com and @cdaveross.bsky.social for the help and support!
www.etsy.com/codeascraft/...
www.etsy.com
October 29, 2025 at 5:37 PM
Reposted by David Ross
jacky.wtf
Can a leftist (progressive) position on #genai be held?

I think it's complicated.
Can a leftist position on the use of generative AI be materially held? - Jacky Alciné
As a Black software engineer and leftist in the United States, I contend with the notion that generative artifical intelligence can be used in a materialistic way that moves the needle forward for pro...
www.jacky.wtf
October 27, 2025 at 2:09 PM
Reposted by David Ross
performanceobserver.dev
Stoyan's video from his talk about fonts and layout shifts is now live!
cc @stoyan.me
#webperf
www.youtube.com/watch?v=WaY8...
Fabulous fallbacks and further font fantasmagoria with Stoyan Stefanov | PerformanceObserver
YouTube video by PerformanceObserver
www.youtube.com
October 24, 2025 at 5:11 PM
Reposted by David Ross
scott.hanselman.com
If you loved the Living Computer Museum in Seattle as much as I did, you should know that SO MANY of those systems are still alive and running at icm.museum?donate under the same stewardship of Stephen Jones who was curator at LCM. You can visit OR connect remotely! DONATE AND DOUBLE YOUR DONATION!
The Interim Computer Museum
icm.museum
October 23, 2025 at 10:35 PM
Reposted by David Ross
catacalypto.bsky.social
pleased to announce that there seems to be a passive-aggressive conflict roiling the august pages of Cooks Illustrated, Fall Harvest recipes edition. allow me to explain:
October 20, 2025 at 3:35 AM
Reposted by David Ross
performanceobserver.dev
Episode 7 is next week on Oct 23! Come join us live for access to Q&A and general chat!

We have @stoyan.me talking about font fallbacks and layout shift plus some extra time for an open discussion!

All details and add-to-calendar at performanceobserver.dev
PerformanceObserver: A virtual web perf meetup
Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.
performanceobserver.dev
October 14, 2025 at 7:04 PM
Reposted by David Ross
tunetheweb.com
We want to congratulate @firefox.com and @firefoxperformance.bsky.social for shipping the Event Timing API in Firefox 144, meaning both INP (which is calculated from Event Timing) and LCP (that they shipped previously) can be measured in that browser. More Core Web Vitals for all!

5/7
Firefox now supports PerformanceEventTiming.interactionId, allowing developers to group related input events. This enables support for the Interaction to Next Paint (INP) responsiveness metric.
October 14, 2025 at 5:21 PM
cdaveross.bsky.social
Reading through it, I'm still baffled at what the final AI-extruded product what supposed to *be*.
I've seen myriad "we've come up with a possibly-new way to visualize preferences, let's use that to sell sponsored beer!" announcements, none of which panned out.

Glad the judges could call it out
404media.co 404 Media @404media.co · Oct 13
For months we followed what happened when a company forced AI into the world of craft beer. Legal threats, people quitting, and beer judges in revolt over being told to use AI.

"It is attempting to solve a problem that wasn’t a problem before AI showed up" www.404media.co/what-happene...
What Happened When AI Came for Craft Beer
A prominent beer competition introduced an AI-judging tool without warning. The judges and some members of the wider brewing industry were pissed.
www.404media.co
October 13, 2025 at 5:42 PM
Reposted by David Ross
catacalypto.bsky.social
omg @amalelmohtar.com pointed out this is Garages vs Tigers and I can’t unsee it
October 11, 2025 at 4:41 AM
Reposted by David Ross
hoperidesalone.bsky.social
THIS IS NOT A FUCKING DRILL.
Act III: This City Made Us, by The Protomen
2 track album
theprotomen.bandcamp.com
October 3, 2025 at 8:02 AM
Reposted by David Ross
yoav.ws
Compression dictionaries is now an official RFC! www.rfc-editor.org/rfc/rfc9842....
RFC 9842: Compression Dictionary Transport
This document specifies a mechanism for dictionary-based compression in the Hypertext Transfer Protocol (HTTP). By utilizing this technique, clients and servers can reduce the size of transmitted data...
www.rfc-editor.org
October 1, 2025 at 5:56 AM
Reposted by David Ross
montereybayaquarium.org
It’s hard to believe, but Sea Otter Awareness Week is over… ‘til next year! Otters get their own week in September because they’re the real MVPs (Most Voracious Predators) of the kelp forest. As a keystone species, they maintain the balance of the ecosystem by eating! Learn more: mbayaq.co/3IPiaE5
A closeup of a southern sea otter eating Two southern sea otters float in the sea otter exhibit A mother southern sea otter floats on her back while her pup rests on her chest Two southern sea otters face the camera in the sea otter exhibit
September 29, 2025 at 4:52 PM
Reposted by David Ross
zoewithasword.bsky.social
Still possibly the greatest title drop in video games
September 24, 2025 at 5:19 AM
Reposted by David Ross
chordbug.bsky.social
forgot to put this up somewhere so here you go. visualize your favorite zlib stream! lynn.github.io/flateview/
September 21, 2025 at 10:56 AM
Reposted by David Ross
velyndis.bsky.social
stuck in my head, for no reason
A screenshot of a tumblr post reading: Me: I don't get it. I thought I was doing a lot better than I was a few years ago. I'm like 10 times more on top of things than I used to be. How does everything feel terrible now? The Tiny Me in OSHA-approved Hi-Vis Gear Who lives in my brain and pulls all the levers: Boss, it's the fascism. You're completely gunked up with cortisol due to the fact that your entire daily life is now underscored with a haunting awareness of the rapid erosion of your rights, dignity, and any and all social safety nets, and you're also bearing witness to the most vulnerable people immediately being persecuted. This creates a natural stress response that basically means you're going to continue having memory and organizational problems, as well as emotional imbalances. Me: BUT I HAVE A BULLET JOURNAL AND I MEDITATE NOW. Tiny OSHA Me: BOSS, THE FASCISM.
September 18, 2025 at 6:51 AM