Tim Kadlec

Do I know anyone, or does anyone I know know anyone, at eBay who I can chat with about some things I'm running into with their API's?

AI automated support bots are one of the worst plagues to infest the internet. They are truly awful, infuriating and useless 95% of the time.

Please, I am begging, just let me talk to a real person.

So far, AI has been considerably better at the illusion of utility and intelligence than at actual utility and intelligence.

AI will have to pry em dashes out of my cold dead hands

Interesting conversation I had with my kids recently: my high-school daughters actively avoid using "big" words in their writing because they get accused of using ChatGPT. Literally dumbing down their writing to avoid being accused of using AI

I do firmly believe that if you're an individual or company that is NOT over-indexing on AI right now, you have the competitive advantage.

Unfortunately I do not have high hopes that the industry will recognize that until significant damage has been done.

Will definitely be making sure it's available both as a CLI and something that can be deployed somewhere.

I heard you found them? :)

We're rewriting the Readme and that's definitely one of the changes in there. :)

Very happy to work on a tool like that with @tkadlec.bsky.social and the team!

Please try it out and post the issues and PRs.

this checks out

problem is will I actually remember this come this time next year?

Phew ok you've got me beat this time. I've got another ~6 hours left. :)

I am so sincerely sorry for what I have done.

So fantastic to see you, as always Tammy. :) Have a safe trip home.

Appreciate it!

Please feel free to add issues for features, improvements, bugs, etc as you go! Or if you're particularly ambitious and bored, PR's. ;)

At the airport heading back after another incredible #perfnow.

Each year, I'm reminded of how fortunate I am to be a part of the performance community. So many wonderful, kind, smart people all working together to make the web better.

Already looking forward to next year.

performance.now() 2026 will take place on 19th and 20th of November 2026. #perfnow.

Thanks, Philip. :)

Will get it merged.

just a couple old guys, yelling at things, us two

Always, always happy to see @yoav.ws get a shout-out. So much incredible work has happened because of him. Most recent example—speculation rules in WebKit. #perfnow

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.

Telescope, the new cross-browser performance testing agent I mentioned at #perfnow that we @cloudflare.social have open-sourced is here: github.com/cloudflare/t...

We want this to be a tool the entire community is able to contribute to and benefit from, so please help us make it better!

Stubborn Empathy by Tim Kadlec One of the most important roles we play on the web is as the users line of defense, which requires that we demonstrate stubborn empathy on their behalf. Unfortunately, that concept is all too easy to ...

I appreciate everyone at #perfnow letting me have my "old man yells at cloud" moment this morning.

Slides are now up: noti.st/tkadlec/3imH...

Michal Mocney presenting at perfnow about SPA heuristics, demoing being able to measure LCP and other metrics on soft navigations

I have been sooooo looking forward to this! SPA heuristics are gonna be such a huge step forward for measuring perf on the web and finally having hard data on the perf impact.

@mmocny.com #perfnow

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 ssttoo@ymail.com. Please include: ...

Fellow #perfnow fellows, a reminder that PerfPlanet calendar is coming this December for another edition. And it needs YOU. Please ask if you have any contribution ideas or concerns calendar.perfplanet.com/contribute/

......

Valid

“We should treat accessibility as something that is structural or baked in or part of the DNA, if we want to be successful”

— says @marcysutton.com at #perfnow

“Don’t treat it like trying to put chocolate chips into a cookie after it is baked”

I love this framing!

O

@inesakrap.bsky.social starting her #perfnow talk with Lego's and Bluey has me already a fan.

How Fast Is Fast Enough? [PerfNow 2025] It sounds like a simple question, but if you've been working in web performance long enough, you know the answer is far from straightforward. In this ke…

Slides from my @perfnow.nl talk — How Fast Is Fast Enough? — are up!

If you’re at #PerfNow (or even if you’re not) I’d love to talk about creating a delightful experience for your users.

speakerdeck.com/tammyeverts/...

Harry on the stage. Behind him, a slide that reads as follows: "While a good TTFB doesn't necessarily mean you will have a fast website, a bad TTFB almost certainly guarantees a slow one." — csswz.it/ttfb

Friendly reminder! #perfnow

@tammyeverts.com opening #perfnow with How fast is fast enough? #pragmagical

beyond tellerrand // BERLIN 2025, taking place 06 - 07 Nov 2025 beyond tellerrand 2025 in Berlin. Join us on 06 - 07 Nov 2025 for talks about web, design, technology, typography and much more. In the renowned friendly atmosphere.

It is Friday, end of week. A good time to grab your ticket for #btconf Berlin. 3 weeks to go and we still have seats available. Full list of #speakers, their #talks and #schedule here on our website. beyondtellerrand.com/events/berli...