iiinova — where your digital self keeps evolving

Reposted by Martin Michalek

PageSpeed.ONE @pagespeedone.bsky.social · 5h

A slow website costs you up to 25% of conversions. Why choose PageSpeed.ONE PLUS? — Clear data instead of guesswork — Catch downtime before your clients do — Gives you the data to convince leadership Get a free 1-month trial 👇 pagespeed.one/en/app/new?t...

pagespeed.one

Setting up monitoring for a new website | PageSpeed.ONE

Enter the URL for your website's homepage and we'll run speed tests.

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Martin Michalek @machal.bsky.social · 2h

Weather around Prague is still ready to ride my bike. 🚴‍♀️🍂

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Martin Michalek @machal.bsky.social · 08/10/2026

A five-minute speech I spent two weeks preparing. Because putting together a 30-minute talk isn't a problem. But preparing a short, punchy, funny intro for your own conference... and keeping it under five minutes? That’s a nightmare! 😅 So, hopefully, Mr. Kout and I pulled it off at #FrontKon.

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Reposted by Martin Michalek

PageSpeed.ONE @pagespeedone.bsky.social · 01/10/2026

Want a lightning-fast website? — Practical technical workflows — Case studies and the impact of site speed on revenue — Real-world optimization insights The best of the performance world right in your inbox. 👇https://pagespeed.one/en/newsletter

pagespeed.one

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Reposted by Martin Michalek

Manuel Matuzović @matuzo.at · 28/09/2026

I'm super excited to attend and speak at FrontKon#26 next week in Prague! There are still tickets left for the event and for my accessibility testing workshop! www.frontkon.tech

frontkon.tech

FrontKon#26 – Tech Conference in Prague

Full-day live conference of the Frontendisti.cz community

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Martin Michalek @machal.bsky.social · 26/09/2026

Czech-style weekend activities.

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Reposted by Martin Michalek

PageSpeed.ONE @pagespeedone.bsky.social · 16/07/2026

Want a lightning-fast website? A monthly newsletter full of web performance: 👉🏻 Technical tips and best practices 👉🏻 Case studies and business impact 👉🏻 Practical insights from our experience Subscribe to the PageSpeed.ONE newsletter👇🏻 pagespeed.one/en/newsletter

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Martin Michalek @machal.bsky.social · 24/09/2026

I'm working on my English. You know… I'm old, no talent for languages… 😅 I've tried everything possible. One thing really works for me – @italkioffical.bsky.social with live teachers, with iTalki Plus, AI lessons based on data from live lessons. What a great idea and execution!

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Martin Michalek @machal.bsky.social · 23/09/2026

Interesting, maybe I will try it this year. I'm into WebPerf and more business vs. UX vs. technology. Not only technical guy. Do you accept only code-containing articles or more wide topics? I can't find content guidelines in the form.

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Martin Michalek @machal.bsky.social · 23/09/2026

Agree, but this this mismatch according how to use metric: People think: – Site Speed = Lighthouse score Reality – Site Speed = RUM or CrUX data – Speed Optimisation Metric = Lighthouse Score

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Martin Michalek @machal.bsky.social · 22/09/2026

I've continued my investigation into how "Delay JS execution" fakes Lighthouse scores. New piece on my personal blog: – which WP plugins ship it (WP Rocket, LiteSpeed Delayed, Perfmatters…) – what their own docs admit – how to spot it in the source. michalek.blog/blog/delay-a...

michalek.blog

Delaying all JavaScript is not optimisation, it just moves the problem · Martin Michálek

One checkbox in a caching plugin can lift a Lighthouse score by tens of points without making a site faster for anyone. Here is which WordPress plugins ship that checkbox, what their own documentation...

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Reposted by Martin Michalek

performance.now() conference @perfnow.nl · 22/09/2026

Oh dear, speakers are being announced in carload lots! Today we add bsky.app/profile/clif... about Core Mobile Vitals bsky.app/profile/jpam... as our second MC bsky.app/profile/mach... about selling web performance Come join them at perfnow.nl

perfnow.nl

performance.now(); 19th and 20th of November 2026, Amsterdam

On 19th and 20th of November 2026, the web performance community will gather at performance.now() in Amsterdam to discuss today’s most important web performance insights.

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Martin Michalek @machal.bsky.social · 22/09/2026

Yes, what I eat makes a difference to me a lot. Strict diet (feeling hungry sometimes is cool:)) + moving body how I like. But I would like to lost 3-5 kg more and it's starting to be difficult. :-D

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Martin Michalek @machal.bsky.social · 22/09/2026

How are you loosing your weight if you do it for this? Any posts about it? (I've lost 8 kg from January, but still not finised and looking for other tips.)

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Martin Michalek @machal.bsky.social · 22/09/2026

#AI is turning the developer world upside down. Discussion is essential, and talks offer only one perspective. That’s why we’re adding two panel discussions to #FrontKon: 🤖 Agentic development in practice 👩‍💻 The present and future of work in IT Looking forward! www.frontkon.tech

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Martin Michalek @machal.bsky.social · 20/09/2026

Team building of the core team @pagespeedone.bsky.social. Beautiful weekend!

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Martin Michalek @machal.bsky.social · 15/09/2026

An interesting move. As part of the #CrUX data suite, Google will also measure technical and UX metrics related to ads. Finally, an effort to decipher just how much ads weigh down websites (including Google’s own).

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Martin Michalek @machal.bsky.social · 15/09/2026

Thanks for adding this one. no-AI block are great brain food for everybody. For me, those are mainly paper books. :)

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Martin Michalek @machal.bsky.social · 14/09/2026

Thanks for adding these two examples.

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Martin Michalek @machal.bsky.social · 14/09/2026

Software development is in the (AI) crisis. Questions coming into my mind: 1) When LLMs write code, what does it mean to be the developer? 2) Should devs write code? 3) Are devs becoming (agents) managers? 4) What is happening with focus, deep work and learning? Do you see another questions?

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Martin Michalek @machal.bsky.social · 10/09/2026

Multiple peaks can reveal distinct groups of user experiences. They may point to different technical conditions—for example, cached vs. uncached visits. One metric value can’t show you these patterns. A histogram can.

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Martin Michalek @machal.bsky.social · 10/09/2026

The 75th percentile is useful—but it hides part of the story. If LCP p75 is 2.10 seconds, 25% of user experiences are slower than that. The histogram shows the users behind the number.

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Martin Michalek @machal.bsky.social · 10/09/2026

#SiteSpeed is not one number. Different people can have very different experiences on the same website. That’s exactly what the #CrUX histogram helps you see. 🧵

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Martin Michalek @machal.bsky.social · 08/09/2026

We just published two new workshops for #FrontKon conference: 1) Karpathy LLM wiki www.frontkon.tech/events/front... 2) Development with local LLMs: privacy, performance and practice www.frontkon.tech/events/front... See you?

frontkon.tech

FrontKon

Full-day live conference of the Frontendisti.cz community

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Martin Michalek @machal.bsky.social · 03/09/2026

Has your INP worsened since May? ⚠️ The Facebook Pixel may be to blame. AT PageSpeed.ONE, we’re already seeing its growing click-processing workload hurt responsiveness on several client websites. #WebPerf #PageSpeed #PageSpeedONE Context: www.linkedin.com/posts/erwinh...

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Martin Michalek @machal.bsky.social · 01/09/2026

A Lighthouse score can be improved without making a website faster. That’s not a Lighthouse bug. It’s what happens when we turn a diagnostic signal into a business target. Measure real users. Use Lighthouse to investigate—not to declare victory. Article: pagespeed.one/en/blog/ligh... #WebPerf

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Reposted by Martin Michalek

Martin Michalek @machal.bsky.social · 27/08/2026

We turned off a plugin that was "speeding up" a client's site. — Lighthouse: 95 → 60 — Core Web Vitals: unchanged It wasn't optimising the site. It was optimising the test. We've found and documented third case of "hacking" Lighthouse score. My article: pagespeed.one/en/blog/ligh...

pagespeed.one

The Illusion of Fast Websites: Gaming the Lighthouse Score | PageSpeed.ONE

Plugins like WP-Optimize, WP Rocket, or Website Speedy can boost your Lighthouse score by deferring JavaScript. However, they do not enhance user speed – and sometimes, even testing tools catch on.

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Martin Michalek @machal.bsky.social · 27/08/2026

pagespeed.one

The Illusion of Fast Websites: Gaming the Lighthouse Score | PageSpeed.ONE

Plugins like WP-Optimize, WP Rocket, or Website Speedy can boost your Lighthouse score by deferring JavaScript. However, they do not enhance user speed – and sometimes, even testing tools catch on.

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Martin Michalek @machal.bsky.social · 25/08/2026

Judging by the interest in workshops at #FrontKon, the entire dev world has switched from AI-first to AI-only. There are still places available: www.frontkon.tech/en/events/fr... We'll list two more topics. Which ones would interest you?

frontkon.tech

Workshopy | FrontKon

Celodenní živá konference komunity Frontendisti.cz

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Martin Michalek @machal.bsky.social · 19/08/2026

Unpopular opinion: Think about Elon Musk what you want, but… His apps are getting really good in last months. Looking at X (comparing with Bluesky) or Cursor.

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Martin Michalek @machal.bsky.social · 19/08/2026

„If you lead something, you are a captain. A short-sighted captain“ I've written a piece about leading teams, people and companies. michalek.blog/blog/short-s...

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Martin Michalek @machal.bsky.social · 14/08/2026

Reading a Performance Timeline by @nucliweb.net. This would be great for people who still have issues with Performance Timeline in Chrome. I love the form of this site. perf.reviews/profile-guide

perf.reviews

Reading a Performance Profile: Field Guide

An interactive field guide to the Chrome DevTools Performance panel: waterfall, flame chart, LCP, CLS, INP, and the Insights panel.

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Martin Michalek @machal.bsky.social · 13/08/2026

Test your real site speed here: pagespeed.one/en/app/insig...

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Martin Michalek @machal.bsky.social · 13/08/2026

We know at least three well-known optimization plugins that game the Lighthouse score. Site owners think their website got faster. It didn't. Only the number did. Real users see zero improvement. Come on. Don't buy this. Measure your site speed with data from real users. #WebPerf #CoreWebVitals

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Martin Michalek @machal.bsky.social · 04/08/2026

Your Lighthouse 100 might be fake. There are WordPress (or Shopify) plugins built to fake a higher score. And zero real speed gain. Lighthouse tests 1 page, 1 device, 1 load. It's not real-world data. Test your real website speed → pagespeed.one/en/app/insig... #PageSpeedONE #PageSpeed

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Martin Michalek @machal.bsky.social · 03/08/2026

Love these Czech cottages in the middle of the forest. You can rent them and escape the city for the weekend.

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Martin Michalek @machal.bsky.social · 22/07/2026

Shopify: "For every 100 milliseconds slower a store loads, conversion tends to be about 3.5% lower." We have two new #WebPerformance optimisation services: 🛍️ Shopify: pagespeed.one/en/shopify 🏷️ Google Tag Manager: pagespeed.one/en/gtm Want to talk? pagespeed.one/en/call

pagespeed.one

Shopify Speed Optimization | PageSpeed.ONE

Shopify is fast, but customizations and templates often slow it down. We analyze your store and restore green Core Web Vitals and conversions.

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Martin Michalek @machal.bsky.social · 20/07/2026

How can one survive vacation when they are more or less a workaholic? (I'm writing an article on this topic, but I'd love to hear your tips too.)

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Martin Michalek @machal.bsky.social · 01/07/2026

Dev Workshops are coming to #FrontKon 👩‍💻 Manuel Matuzovic – accessible React @kettanaito – React testing with Vitest @BleedingDev – AI in dev without the fluff Michal Matuška – Chrome DevTools deep dive In-person, hands-on. Prague, 5 Oct 2026. www.frontkon.tech/events/front...

frontkon.tech

Workshops | FrontKon

Full-day live conference of the Frontendisti.cz community

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