David Ross
@cdaveross.bsky.social
PNW web-performance specialist; into cooking, craft beer & cider, otter pics, & intersectional support. (He/They)
Pinned
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
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
Reposted by David Ross
Here's your friendly reminder that CSS selectors are global and evaluated RTL, so if you have selectors that are very broad like `.container > div` you might be impacting performance in a measurable way 🙈
Before and after profile of server switching after some selector optimizations in @discord.com
Before and after profile of server switching after some selector optimizations in @discord.com
January 27, 2026 at 4:41 PM
Here's your friendly reminder that CSS selectors are global and evaluated RTL, so if you have selectors that are very broad like `.container > div` you might be impacting performance in a measurable way 🙈
Before and after profile of server switching after some selector optimizations in @discord.com
Before and after profile of server switching after some selector optimizations in @discord.com
Reposted by David Ross
this is truly a perfect distillation of the AI industry's ever-more-monumental public relations problem
Every single time I try to adjust my priors and give 'AI' the benefit of the doubt, something else happens which shows everyone who is pushing this is doing so with reckless disregard for the potential harms or fully cognizant of what they're breaking.
January 26, 2026 at 5:40 PM
this is truly a perfect distillation of the AI industry's ever-more-monumental public relations problem
Reposted by David Ross
Showing cross-racial solidarity is a potential death sentence. There are few things white supremacists hate more.
37 year old white male citizen with a lawful permit to carry a firearm, says the Minneapolis Police Department.
January 24, 2026 at 6:11 PM
Showing cross-racial solidarity is a potential death sentence. There are few things white supremacists hate more.
Reposted by David Ross
We could talk about whether we got the "good cyberpunk" but what's important I think is a good 50 years of film and comics were trying really, really hard to make you think about this exact sort of image, and to internalize that if you saw this sort of image you should have an intense reaction to it
Every Stephen Miller tantrum and DHS recruitment ad speaks in these existential terms about "defending your culture" to elide the fact that they need people with the courage to wear a mask while interrogating a sixth grader
January 21, 2026 at 7:41 PM
We could talk about whether we got the "good cyberpunk" but what's important I think is a good 50 years of film and comics were trying really, really hard to make you think about this exact sort of image, and to internalize that if you saw this sort of image you should have an intense reaction to it
Reposted by David Ross
Reposted by David Ross
The 2025 Web Almanac by HTTP Archive has been officially released! 🚀
We would like to thank all of our contributors from around the globe who made this extensive report possible!
Check out the full report here: almanac.httparchive.org
We would like to thank all of our contributors from around the globe who made this extensive report possible!
Check out the full report here: almanac.httparchive.org
January 16, 2026 at 3:00 AM
The 2025 Web Almanac by HTTP Archive has been officially released! 🚀
We would like to thank all of our contributors from around the globe who made this extensive report possible!
Check out the full report here: almanac.httparchive.org
We would like to thank all of our contributors from around the globe who made this extensive report possible!
Check out the full report here: almanac.httparchive.org
Reposted by David Ross
🦦🌊 #telekitneticart #formline #indigenousart
Another otter formline commission for loial otter via TG!! :>
Another otter formline commission for loial otter via TG!! :>
November 18, 2025 at 2:22 AM
🦦🌊 #telekitneticart #formline #indigenousart
Another otter formline commission for loial otter via TG!! :>
Another otter formline commission for loial otter via TG!! :>
Reposted by David Ross
I've been running an indie games studio for 15 years now, and it felt like a good time to boil down what I've learned into 4 pieces of advice:
www.pentadact.com/2026-01-08-1...
I hope it's of use, not least because goddamn I forgot how long blog posts take to write.
www.pentadact.com/2026-01-08-1...
I hope it's of use, not least because goddamn I forgot how long blog posts take to write.
January 8, 2026 at 6:02 PM
I've been running an indie games studio for 15 years now, and it felt like a good time to boil down what I've learned into 4 pieces of advice:
www.pentadact.com/2026-01-08-1...
I hope it's of use, not least because goddamn I forgot how long blog posts take to write.
www.pentadact.com/2026-01-08-1...
I hope it's of use, not least because goddamn I forgot how long blog posts take to write.
Reposted by David Ross
ICE agent kills woman, DHS tells obvious, insane lies about it: defector.com/ice-agent-ki...
ICE Agent Kills Woman, DHS Tells Obvious, Insane Lies About It | Defector
On Wednesday in Minneapolis, masked government agents apparently representing Immigration and Customs Enforcement (ICE) surrounded a stationary vehicle stopped in the middle of a residential street.…
defector.com
January 7, 2026 at 8:47 PM
ICE agent kills woman, DHS tells obvious, insane lies about it: defector.com/ice-agent-ki...
Reposted by David Ross
“It’s about being full human beings and not just means to an end. I want to live in a city that honors what you’re doing when you’re not making money: time spent on the playground with a kid or visiting a sick friend…we need bread, but we need roses too.” -Seattle Mayor Katie Wilson
January 2, 2026 at 7:13 PM
“It’s about being full human beings and not just means to an end. I want to live in a city that honors what you’re doing when you’re not making money: time spent on the playground with a kid or visiting a sick friend…we need bread, but we need roses too.” -Seattle Mayor Katie Wilson
Reposted by David Ross
The viewers are encouraged to take pieces of candy away, symbolically performing a sacrament of partaking of the body, and symbolically watching his partner waste away to nothing.
It is such a poignant and powerful piece
It is such a poignant and powerful piece
Felix Gonzalez-Torres, 1991, “Untitled”. A pile of free candy, the pile can be staged in any art gallery anywhere but must weigh 175 pounds, which was the healthy weight of Gonzalez-Torres’ partner Ross Laycock, who died of AIDS.
![[Image description: a corner in a white-walled art gallery. There is a large mound of multicolored candy piled up in the corner.]](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cdvx6m3a2ssmxbgtigmrqk7d/bafkreicw3krddnt5evm7ayup5ye5d42k2hut3ytul7jjabhwoem5ara3sa@jpeg)
January 1, 2026 at 7:00 PM
The viewers are encouraged to take pieces of candy away, symbolically performing a sacrament of partaking of the body, and symbolically watching his partner waste away to nothing.
It is such a poignant and powerful piece
It is such a poignant and powerful piece
Reposted by David Ross
My contribution to this years Web Performance Calendar is all about Third Parties and Single Points of Failure (SPOF). Based on @httparchive.org data I found that 67% of websites have at least 1 render blocking third party - and quite a few of them are SPOF risks!
Web Performance Calendar day 29 with @paulcalvano.bsky.social's research on 3rd parties, SPOF, and the need to test and monitor these. 67% of sites out there have at least 1 render-blocking external dependency.
calendar.perfplanet.com/2025/third-p...
calendar.perfplanet.com/2025/third-p...
Third Parties and Single Points of Failure
You've heard it many times - third party content can easily cause an otherwise well performing website to become sluggish and slow. And depending on how this content is loaded, it can also introduce s...
calendar.perfplanet.com
December 29, 2025 at 3:20 PM
My contribution to this years Web Performance Calendar is all about Third Parties and Single Points of Failure (SPOF). Based on @httparchive.org data I found that 67% of websites have at least 1 render blocking third party - and quite a few of them are SPOF risks!
Reposted by David Ross
Can't wait for the loosened up, non-perfect, but quickly shipped AI-enhanced updates to hit my banking and insurance services next year.
Im sure there will be no issues there at all.
Im sure there will be no issues there at all.
December 26, 2025 at 4:09 PM
Reposted by David Ross
What do I mean when I say everything in Obsidian should feel instantaneous?
No more than 0.1 seconds.
The target was established in 1968 by Robert Miller and well described in 1993 by Jakob Nielsen here:
No more than 0.1 seconds.
The target was established in 1968 by Robert Miller and well described in 1993 by Jakob Nielsen here:
December 26, 2025 at 1:29 PM
What do I mean when I say everything in Obsidian should feel instantaneous?
No more than 0.1 seconds.
The target was established in 1968 by Robert Miller and well described in 1993 by Jakob Nielsen here:
No more than 0.1 seconds.
The target was established in 1968 by Robert Miller and well described in 1993 by Jakob Nielsen here:
Reposted by David Ross
Updated de Content-Visibility snippet for Chrome DevTools
- Detects existing content-visibility usage
- Finds offscreen optimization opportunities
- CLS warnings for missing contain-intrinsic-size
- Configurable thresholds
webperf-snippets.nucliweb.net/Loading/Cont...
#WebPerf #PerfTools
- Detects existing content-visibility usage
- Finds offscreen optimization opportunities
- CLS warnings for missing contain-intrinsic-size
- Configurable thresholds
webperf-snippets.nucliweb.net/Loading/Cont...
#WebPerf #PerfTools
Content Visibility – Nextra
A curated list of snippets to get Web Performance metrics to use in the browser console or as snippets on Chrome DevTools by Joan León
webperf-snippets.nucliweb.net
December 20, 2025 at 12:41 AM
Updated de Content-Visibility snippet for Chrome DevTools
- Detects existing content-visibility usage
- Finds offscreen optimization opportunities
- CLS warnings for missing contain-intrinsic-size
- Configurable thresholds
webperf-snippets.nucliweb.net/Loading/Cont...
#WebPerf #PerfTools
- Detects existing content-visibility usage
- Finds offscreen optimization opportunities
- CLS warnings for missing contain-intrinsic-size
- Configurable thresholds
webperf-snippets.nucliweb.net/Loading/Cont...
#WebPerf #PerfTools
Reposted by David Ross
I don't know what to say about this garbage vote to criminalize gender affirming care btw. Been trying to find the words. I hear so many friends in sadness and fear today but of what use is "I hear you"? Not much I fear. To live through this moment sucks ass (negative). We must find a way through
December 18, 2025 at 9:38 PM
I don't know what to say about this garbage vote to criminalize gender affirming care btw. Been trying to find the words. I hear so many friends in sadness and fear today but of what use is "I hear you"? Not much I fear. To live through this moment sucks ass (negative). We must find a way through
Reposted by David Ross
Reposted by David Ross
I understand that a lot of folks have been misled by fear-mongering and powerful regressive voices but it’s still astonishing to me that so many have fallen for the idea that oppressively policing other people’s gender identity and expression could in any way be part of an enlightened future.
December 13, 2025 at 5:49 PM
I understand that a lot of folks have been misled by fear-mongering and powerful regressive voices but it’s still astonishing to me that so many have fallen for the idea that oppressively policing other people’s gender identity and expression could in any way be part of an enlightened future.
Reposted by David Ross
Found the coolest website that takes random found cassette tapes people submit and digitizes them. I’m listening to an NYC hip hop station from 1994: intertapes.net
Intertapes — Main
Obscure tape finds and their stories
intertapes.net
December 13, 2025 at 1:40 AM
Found the coolest website that takes random found cassette tapes people submit and digitizes them. I’m listening to an NYC hip hop station from 1994: intertapes.net
This's exciting to see, I'm glad LCP/INP are arriving. I'll be curious to see how full cross-browser comparisons of these perf metrics shake out
Safari 26.2 is here with 65 features + 165 bug fixes — including field-sizing, Navigation API, Largest Contentful Paint, command & commandfor, CHIPS opt-in partitioned cookies, scrollend event, random(), WebGPU in WebXR, scrollbar-color, hidden=until-found and much more! webkit.org/blog/17640/w...
WebKit Features for Safari 26.2
Safari 26.2 is a big release.
webkit.org
December 12, 2025 at 6:57 PM
This's exciting to see, I'm glad LCP/INP are arriving. I'll be curious to see how full cross-browser comparisons of these perf metrics shake out
Reposted by David Ross
WASHINGTON AND OREGON CARTOONISTS: Seattle's bus service is commissioning 6 artists for public art pieces, 2 each, of local stories, 16-32 pages, over 2026, for $54k per artist, to be freely distributed over their ridership.
details here: www.4culture.org/grants/movin...
details here: www.4culture.org/grants/movin...
Moving Stories: Short-Form Graphic Novels for King County Metro Transit RapidRide
King County Metro and 4Culture seek six artists to create short-form graphic novels that illuminate community stories along new and existing RapidRide lines.
www.4culture.org
December 8, 2025 at 1:47 AM
WASHINGTON AND OREGON CARTOONISTS: Seattle's bus service is commissioning 6 artists for public art pieces, 2 each, of local stories, 16-32 pages, over 2026, for $54k per artist, to be freely distributed over their ridership.
details here: www.4culture.org/grants/movin...
details here: www.4culture.org/grants/movin...
Reposted by David Ross
Developer attempts to replicate "Liquid Glass" in CSS, and once finished realizes what she'd actually created is an exploit for a fundamental, previously unknown, and rather serious browser vulnerability
lyra.horse/blog/2025/12...
"CSS hack accidentally becomes regular hack"
lyra.horse/blog/2025/12...
"CSS hack accidentally becomes regular hack"
SVG Filters - Clickjacking 2.0
A novel and powerful twist on an old classic.
lyra.horse
December 5, 2025 at 2:03 AM
Developer attempts to replicate "Liquid Glass" in CSS, and once finished realizes what she'd actually created is an exploit for a fundamental, previously unknown, and rather serious browser vulnerability
lyra.horse/blog/2025/12...
"CSS hack accidentally becomes regular hack"
lyra.horse/blog/2025/12...
"CSS hack accidentally becomes regular hack"
Reposted by David Ross
December is here (in a few hours in my timezone), which means the Web Performance "Advent" Calendar is back for its... 17th Edition! One article a day in the month of December.
Be a part of it and contribute an article: calendar.perfplanet.com/contribute/
Be a part of it and contribute an article: calendar.perfplanet.com/contribute/
Contribute
Passionate about a topic? Working on a new tool? Have a technique you want to teach? Research you've done? Tell the web performance community!
Send your articles to [email protected]. Please include:
...
calendar.perfplanet.com
December 1, 2025 at 4:06 AM
December is here (in a few hours in my timezone), which means the Web Performance "Advent" Calendar is back for its... 17th Edition! One article a day in the month of December.
Be a part of it and contribute an article: calendar.perfplanet.com/contribute/
Be a part of it and contribute an article: calendar.perfplanet.com/contribute/
Reposted by David Ross
TGIF: I'm having some guests join me on Wednesday Dec 3rd to talk about Core Web Vitals. I revealed the 1st set of presenters today, and will reveal the others on Cyber Monday. Nonetheless, join us, @stoyan.me @cdaveross.bsky.social + a few more...
📆 Wed Dec 3rd
⏰ 11a EST 5p CET
🔗 bit.ly/cwv-summit
📆 Wed Dec 3rd
⏰ 11a EST 5p CET
🔗 bit.ly/cwv-summit
November 28, 2025 at 10:20 PM
TGIF: I'm having some guests join me on Wednesday Dec 3rd to talk about Core Web Vitals. I revealed the 1st set of presenters today, and will reveal the others on Cyber Monday. Nonetheless, join us, @stoyan.me @cdaveross.bsky.social + a few more...
📆 Wed Dec 3rd
⏰ 11a EST 5p CET
🔗 bit.ly/cwv-summit
📆 Wed Dec 3rd
⏰ 11a EST 5p CET
🔗 bit.ly/cwv-summit
Reposted by David Ross
This is...sort of brilliant.
November 19, 2025 at 12:56 PM
This is...sort of brilliant.