Principal Product Manager @Cloudflare—focused on perf & observability. Co-chair of @perfnowconf. Taller than my photo looks.

Northwoods, WI
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…
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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…
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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
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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…
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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
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me anytime I try to figure out how to accomplish anything in the AWS UI

ALT Kristen Bell hitting a button while saying "Let's just see what this button does"

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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
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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
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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…
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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
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👀 Well hello there! @SpeedCurve
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Kind of snuck under the radar, but love that @speedcurve has navigation types as a filter now. Extremely useful!!
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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
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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…
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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…
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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/
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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
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