@tkadlec
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Principal Product Manager @Cloudflare—focused on perf & observability. Co-chair of @perfnowconf. Taller than my photo looks.
Northwoods, WI
Joined February 2008
- Tweets14.8K
- Following776
- Followers11.6K
- Likes11K
Tim Kadlec retweeted
Is “fast” fast enough? 🚀 @tkadlec explores why today’s performance benchmarks won’t cut it tomorrow at #WebExpo.
Learn how new web standards push performance and how to stay ahead TODAY.
Don't fall behind and join us in Prague, May 28–30!
webexpo.net/prague2025/sessi…
Tim Kadlec retweeted
Is TTFB a hot new metric? No.
Is it a key #webperf metric for tracking responsiveness? YES! Slow TTFB virtually guarantees your site will deliver a poor #UX. Bonus: It's widely available across browsers!
@tkadlec explains how to diagnose TTFB issues...
speedcurve.com/web-performan…
Tim Kadlec retweeted
Exciting new product updates from our awesome dev team!
Long story short: We've made it easier and faster for you to find and fix the issues that are hurting your Vitals metrics!
#webperf #corewebvitals #ux
NEW: Our latest release includes a huge upgrade for your Vitals dashboard!
😀 Backend Time & FCP added to Vitals
😀 More charts & visuals to help you quickly find & fix issues that affect Vitals
😀 Consistent filters across ALL dashboards
speedcurve.com/blog/new-core… #webperf #ux
Tim Kadlec retweeted
Hello #SmashingConf NY folks! Be sure to sign up for this FREE lunch session with Tim Kadlec (@tkadlec).
Tim will give a tour of new #webperf metrics + how to use them to home in on which optimizations will make your pages faster (and which ones won't).
smashingconf.com/ny-2024/lun…
Err...this is gonna sound crazy, but I'm pretty sure AWS is...randomly deleting dynamoDB items?
My app has one & only one point where it deletes items and I can see no record in CloudTrail of anything being deleted, yet every day a couple random items just...aren't there anymore
ok hold up how long has this been there without me noticing
chrome drawing a red line between style recalc and the method that triggered it in their flame charts
Tim Kadlec retweeted
NEW: Our latest release includes RUM attribution and subparts for INP! @cliffcrocker explains:
🟡 Element attribution
🟢 Where time is spent within INP, leveraging subparts
🔴 How to use this information to fix INP issues
speedcurve.com/blog/rum-attr… #corewebvitals #webperf #ux
ALT A table that shows the following metrics for a series of unique web pages: Interaction to Next Paint, Input Delay, Processing Time, and Presentation Delay. The numbers for each metric are colour-coded to reflect their score based on Google's recommended thresholds for INP.
Tim Kadlec retweeted
Keeping your site fast is a crucial endless game. Yet it's perilously easy to lose focus. @tkadlec uses the analogy of guardrails (automated testing & alerts) and breadcrumbs (deployment tracking) to make #webperf more visible throughout the dev process.
speedcurve.com/blog/continuo…
Tim Kadlec retweeted
NEW! Based on your feedback, we've expanded your capabilities for on-demand testing! This how-to post covers:
🟡 Scheduled vs on-demand tests
🟡 Run on-demand tests for site or custom URL
🟡 View & compare test details
🟡 Group tests as a deploy
speedcurve.com/blog/on-deman… #webperf
Tim Kadlec retweeted
Site speed isn’t something you fix once and walk away from. @tkadlec offers pro tips on how to set up continuous monitoring – as part of your CI/CD process – so you can fight regressions and stay fast.
speedcurve.com/blog/continuo… #webperf #sitespeed #pagespeed #cicd
Kind of snuck under the radar, but love that @speedcurve has navigation types as a filter now. Extremely useful!!
Love me some server timing!
Backend time can have a big impact on Largest Contentful Paint and other metrics. @cliffcrocker explains how to use server-timing headers to find out what's happening inside the black box of Time to First Byte.
speedcurve.com/blog/server-t… #webperf #pagespeed #corewebvitals
Tim Kadlec retweeted
ICYMI: Our awesome customer care team just got awesomer! Welcome @tkadlec!
😀 Learn more about Tim and how he'll be helping us make your sites faster (and your users happier): speedcurve.com/blog/building…
⚡️ Explore our #webperf and #ux consulting services: speedcurve.com/features/cons…
ALT Photos of the SpeedCurve customer care team: Cliff Crocker, Tim Kadlec, Andy Davies, Steve Souders, Tammy Everts, and Mark Zeman
Super excited to be joining the @SpeedCurve team and working alongside folks I've called friends for a long time!
Welcome to the team, @tkadlec! 2024 is off to a fantastic start!
In his first post on our blog, Tim talks about his #webperf path... and how joining SpeedCurve was a long time coming. (We agree!)
speedcurve.com/blog/building…
I am still going to do some consulting this year, but I'm taking on fewer clients (for obvious reasons :) ). I do still have some availability left: timkadlec.com/me/
Tim Kadlec retweeted
In case you did not know yet. We have a #scholarship program for #btconf. We always have a certain amount of #tickets, we give out to support anyone who otherwise could not join evens like ours. If you want to apply for one, please use this link: btco.nf/scholarship
Tim Kadlec retweeted
Line-up for the 4th #PerfNow: @TheNishuGoel, @csswizardry, Bas Schouten, @jodiewyc, @RyanTownsend, @tameverts, @TimVereecke, @programmingart, @KeerthanaK17, @tkadlec, @guaca, @MarkZeman, @szynszyliszys, @TheRealNooshu, Sia Karamalegos & @philhawksworth perfnow.nl