The heavens opened and tried to swallow my house tonight.

"Revoke Certificate" - It's theater. Most revoked certs keep working. Chrome, Firefox, Safari each block different revoked certs. The industry knows it's broken, so they're forcing 47-day expiration instead. www.certkit.io/blog/certifi... #PKI #CertificateManagement

My weekend upgrade: added a UPS since we keep losing power here. Unknown if my fiber connection stays online if we lose power.

MetaMask throwing connection errors in your logs? You're not alone. These extension errors pollute your monitoring with noise that isn't even your fault. We show you how to filter them out automatically. Read more: trackjs.com/javascript-e... #JavaScript #WebDev

A few weeks ago I did a Press Release for CertKit. It didn't really work out. Here's why. www.toddhgardner.com/blog/press-r... #seo #pr #startups

JavaScript top-level await is no longer considered 'baseline' due to a pretty big Safari bug caniuse.com/mdn-javascri... The module graph fails in cases where two modules import a third at the same time. Demo: random-stuff.jakearchibald.com/bug-repros/t... It's best to avoid the feature for now 😔

Stripe bought their domain in 2010. The previous owner's SSL certificate was valid until 2011. For an entire year, someone else had a perfectly legitimate certificate for their payment processing. This is why we're getting 47-day certificates. www.certkit.io/blog/bygones...

We can't control the user or the browser, so there is only one way to make websites faster: Do Fewer Things. Another fantastic clip thanks to @henrihelvetica.bsky.social's SPDY Stream. www.youtube.com/watch?v=Vs4-... www.toddhgardner.com/blog/how-to-...

www.youtube.com/watch?v=-8wP... An excellent short courtesy of @henrihelvetica.bsky.social and the SPDY Podcast about the important of RUM data over synthetic (lab) testing for web performance. www.toddhgardner.com/blog/why-is-...

Peak fall colors up at Castle Danger today.

I wrote up a debug log on one of my "favorite" errors of all time: Unexpected Token: '<' It's currently the #15 most common error on the Internet. trackjs.com/javascript-e... #javascript #webdev #debugging

I have no idea if this works, but I did my very first Press Release today! I'm not really sure what to expect with it -- probably nothing lol. But I think we're doing something really interesting with @certkit.io . www.einpresswire.com/article/8583...

Netflix doesn't join standards bodies. They build streaming protocols, not bureaucracy. #ssl

Bluesky feels dead. Is anyone real here?

I spent way too long crawling through CA/Browser forum mailing lists and repositories to understand the story of how we ended up with 47 day certificates. It's wild.

It started as 47 beautiful lines of bash. Now it's a distributed certificate system built on thousands of command line incantations nobody understands, running on every server, and some of the printers. www.certkit.io/blog/why-you... #devsecops #ssl #certificates

I had a fantastic time chatting with @richcampbell.bsky.social about Certificate management (specifically how much it sucks) and how we're trying to make it better at @certkit.io. Do you have strong feels about certificates? I'd love to chat with you about it.

The days of the one-year SSL certificate are coming to an end - are you ready? @toddhgardner.com talks on RunAs Radio at runasradio.com/Shows/Show/1... about the new SSL certificate limits being phased in over time!

sed -i 's/loading/thinking/g' I'm an AI company now. Money please.

Going live with @henrihelvetica.bsky.social right now to talk web performance. Finally get to share why your lighthouse score is lying to you www.youtube.com/watch?v=8bWs...

✨ SPDY STREAM 008 ✨ 🔐 We are pleased to announce our next guest, @toddhgardner.com of @trackjs.com + @requestmetrics.com . He'll share his experience working across multiple industries in helping engineering teams. Join us! 📆 Wednesday Aug 27th ⏰ 1PM EDT 🔗 bit.ly/spdy-stream-008

Jordan celebrates finally getting rid of bootstrap styles in the TrackJS redesign. youtube.com/shorts/2vkdD... Learn more about the TrackJS redesign 👇 trackjs.com/blog/a-fresh...

That moment when your Lighthouse score is 💯 but users are still complaining about slow pages... Stop guessing, start measuring what they actually experience. https://requestmetrics.com/web-performance/you-need-rum-to-understand-web-perf/ #WebDev #Performance

🚨 Plot twist: 50% of websites with perfect Lighthouse scores still fail Core Web Vitals for real users. Your synthetic tests run in a perfect bubble. Your users live in the real world. https://requestmetrics.com/web-performance/you-need-rum-to-understand-web-perf/ #WebPerf #RealUserMonitoring

Let me be non-software for a moment. I just hit a huge personal goal: the 1000lb club for lifting. It's been my goal for the last 3 years and it feels amazing. Never to old to start doing things. Plus, I overshot it, so I'm calling it the 2^10 club now--so it's still a little software :)

I discuss "Frontend Observability" w @toddhgardner.com on the latest episode of @redmonk.com's the MonkCast—its definition, historical context, and the uphill marketing hurdles involved in educating web developers about #olly tools. redmonk.com/blog/2025/04... youtube.com/shorts/o1HGz...

Discover why Time to First Byte (TTFB) is crucial for website speed in this essential Concepts of Web Performance tutorial with @toddhgardner.com from Request Metrics.

Master the art of loading JavaScript efficiently in this essential Concepts of Web Performance tutorial with @toddhgardner.com from Request Metrics. youtu.be/vS3-1RQecEE

🔄 "no-cache" ≠ "don't cache"! This actually means "cache but validate before using" - not "don't cache at all" (that's no-store). This confusion causes so many performance issues! 🤦‍♂️ requestmetrics.com/web-performance/http-caching/

@joshuaclareflagg.bsky.social uses Request Metrics for his #ecommerce stores to give him Quick and Easy insights into his #CoreWebVitals, and how to make his website faster!

Step 1. Create a car inspired by dystopian cyberpunk fiction. Step 2. Make that fiction reality. Step 3. Profit?

Whoa @slashdot.org is a blast from the past. So many hours spent there. Share a review with us?

The web runs at 60 FPS (ideally), meaning each frame has 16ms to do its thing. If your code takes longer, it lags. 🎢 Fixing Long Animation Frames (LoAFs) keeps your UI snappy! More on hitting that smooth 16ms target: 🔗 https://requestmetrics.com/web-performance/long-animation-frame-loaf/

New in Chrome DevTools: Accurately emulate CPU performance of a low/mid tier phone with Automatic CPU throttling calibration! 📲 This feature calculates slow-downs for your specific device. Wanted this for years! We just shipped it.

This is a fantastic post from @csswizardry.com about using WebForms. Wait no, it's about Backbone.js. No, it's about Angular. Or it's about React. No, now it's about NextJS. You should probably just write for the web instead of trying to hide it. csswizardry.com/2025/01/buil...

Does WebPerf actually matter for SEO? If you missed my talk at PerformanceObserver, here's the video! Check out what we discovered with Keyword Vitals: https://www.youtube.com/watch?v=s7PhpumaU78

🚨 Stop serving massive images to mobile users! Your 2800px-wide hero image is wasting bandwidth and slowing down smaller screens. Use srcset & sizes to deliver the right image for each device. Full guide 👉 https://requestmetrics.com/web-performance/high-performance-images/

Will you be my valentine @erinschmo.bsky.social ?

Keyword Vitals shows you how web performance impacts your SEO rankings by analyzing real-world Core Web Vitals data directly in Google search results. requestmetrics.com/resources/to... by @toddhgardner.com #WebPerf #Performance #SEO

Today in really dumb cybersecurity rules: My vendor password has to be EXACTLY 8 characters long. I don't think that special character requirement makes up for this huge reduction in possible values lol.

🗓️ TODAY at 5:00 UTC Our founder @toddhgardner shares his investigation into whether #webperf actually matters for #SEO in 2025. Join the free online meetup at https://performanceobserver.dev/

Locked in for my talk tomorrow at the inaugural Performance Observer meetup: "Does Web Performance Actually Matter for SEO?" Google says speed matters. SEO experts debate it. Performance nerds argue about it. But who’s right?

The new Lab Scan email is 🔥 We automatically scan your busiest pages, rollup your scores and common issues from Mobile and Desktop, and show details from your slowest pages. Why are you still manually scanning your website?

📣 Reminder!! In 2 days, we have @toddhgardner.com and @inesakrap.bsky.social giving talks in our first meetup! For full details - check out our website (and add to calendar to get the join links)! performanceobserver.dev

Wall-E knew how to repair other robots, because he knew how to repair himself. He chose not to.

The tech recession continues 🙄 www.wsj.com/articles/it-...

Vector images (SVG) scale infinitely, stay crisp at any size, and have tiny file sizes—perfect for icons, logos, and graphics. Ditch PNGs when you can! Just don’t export a PNG as SVG—that’s cheating. 😉 Full breakdown here: 👉 https://requestmetrics.com/web-performance/high-performance-images/

Give it a try, totally free, no signup. requestmetrics.com/resources/to...

🎉 We just dropped an updated version of our popular HTTP Cache Header Checking tool for Request Metrics. It's a handy little tool to see how your website, image, scripts, or anything else on the web would be cached by web browsers. Caching can give you huge boosts for your returning visitors.