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

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

Vacation could be great! If you weren't there with me… 😅 My newest post is titled "Vacation: A Guide for Workaholics". michalek.blog/guide/vacati...

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

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.

pagespeed.one

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.)

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...

Don't let AI start anything. Bring it in at phase two – revision, variants, discussion, or just the work itself. It's a reliable way to keep your own expertise sharp. And to hold on to the fun part of the job. I remind myself of this constantly. Do you?

> the most interesting question isn't "what other jobs can I take on?" but "how do I make the thing I do well reach further?" www.lukew.com/ff/entry.asp...

LukeW | Scale Your Superpowers, Not Your Job Titles

There's a growing sentiment that AI lets you do everyone else's job: designers picking up Claude Code, developers spinning up Figma Make. But maybe the most int...

lukew.com

I realize again and again how crucial it is to log a task description whenever I use AI in development. And at the same time, how incredibly useful AI itself is for creating that task description.

I've got new english blog. And there are also some posts. :-) → michalek.blog

Your company's CEO might soon make a move before you can read the task definition. Are non-technical people already digging into your code? ✏️New article: michalek.blog/blog/ceo-tak...

This is awesome. In a new study, #Shopify shows the impact of #SiteSpeed on e-commerce business. What did they find, for example? > For every 100 milliseconds of slower store loading time, conversions are 3.5% lower. www.shopify.com/enterprise/b...

Store Speed and Conversion: What the Data Shows (2026) - Shopify

How does site speed relate to sales? Find out in this Shopify data deep dive.

shopify.com

Why there is no #Cursor mobile app to allow work continuity without sitting in front of computer? Basic communication with AI agents I can do from my iPhone. Same as with people. Does any competitor offer this?

✎ We have rewritten two key articles for the #PageSpeed documentation from @pagespeedone.bsky.social 1) #CoreWebVitals: all the details about these metrics pagespeed.one/metrics/cwv 2) #ChromeUXReport: what is it and what is it for?https://pagespeed.one/knowledge/crux #WebPerf

Top 3 @webexpo.bsky.social talks this year for me: – Nick Fine on building without evidence. – Oliver Schöndorfer on typography. (His delivery!) – Ladislav Prskavec on MCP. WebExpo itself was great, as always! ❤️ More thoughts (in Czech): www.linkedin.com/posts/martin...

#webexpo #frontkec | Martin Michálek

Z WebExpa jsem včera odcházel zdravě naštvaný. Web je můj profesní život a WebExpo Conference miluju. Mimo jiné i proto, že mi několikrát v životě pomohlo překormidlovat vlastní kariéru. Za to patří ...

linkedin.com

#Chrome has been really slow lately. So I went to try #Safari again. I've only been using it for a day so I can't judge. But! I couldn't even last a day with my previous attempts. It seems to me that Apple has put a lot of effort into this browser in last year...?

Monitoring site speed? You need to know the acronyms: #synth, #CrUX, and #RUM. — Synthetic monitoring = machines (Lighthouse). — CrUX = real users in Google Chrome. — RUM = custom data from all users. Learn more here: pagespeed.one/en/know-how/... Which type do you use?

Types of Web Speed Measurements: Synthetic, Chrome UX Report, and Real User Monitoring | PageSpeed.ONE

Let's clarify the differences between various types of web speed measurements. We’ll discuss synthetic data (“synth”), Google user data (“CrUX”), and data from all users (“RUM”).

pagespeed.one

We at @pagespeedone.bsky.social have just launched a new website speed test. ⚡️ → pagespeed.one/en/app/insig...

At @pagespeedone.bsky.social we have launched a new service “Strategy for AI Bots”. AI bots are probably slowing down your websites too. We will come, discuss the data, set the rules so that the bots are fed up and you do not lose visibility in LLM. pagespeed.one/en/ai-bots #WebPerf #AI

Is Bluesky stagnating = slowly dying? bsky.jazco.dev/stats

Krkonoše. Weekend between the Czech Republic and Poland. Was good. ☀️

One of the biggest pitfalls of developing with LLM is bulk editing. It's temptingly simple, it edits beautifully contextually, including texts. But it often breaks something else and it's hard to control on a larger codebase.

Two days left to submit your talk for #FrontKon Prague's dev conference. docs.google.com/document/d/1...

FrontKon 2026: Call for Papers

FrontKon 2026: Call for Papers info FrontKon is leveling up for its 5th anniversary, moving to O2 universum Prague with 900 attendees and 3 stages. For the first time, we are opening our main stage ...

docs.google.com

“There are no friends and no enemies, only teachers.” This quote from one of the talks stuck with me the most. We had a great two days at the fantastic conference @beyondtellerrand.com We are taking a lot of inspiration to #FrontKon in Prague.

At #btconf in Düsseldorf.

After 30 years of typing, I’m switching to dictation. A few takeaways: — It’s definitely faster. — Not for everything. I still type personal texts. — Higher speed, higher cognitive load. You have to think ahead. Using #WisprFlow and it's a game changer for me. #AI #Productivity

Is AI a terrible copywriter? I’m rebuilding @pagespeedone.bsky.social website with Cursor & agent skills and rating what AI can do: Frontend dev ★★★ Translator ★★★ UI design ★★☆ Copywriting ★☆☆ It produces “AI copy”. I keep rewriting. Is it the tools, or my prompting? What works for you?

Heading to Düsseldorf next week for @beyondtellerrand.com. Looking forward to recharge! Let’s grab a coffee (or an Altbier) and talk #WebPerf, #ProductDesign & #Frontend. beyondtellerrand.com/events/dusse... #beyondtellerrand #btconf

beyond tellerrand in Düsseldorf - 27–28 Apr 2026

beyond tellerrand is the affordable single-track event where creativity and technology meet. Taking place in Düsseldorf and Berlin these days with 500+ attendees each in a renowned, familiar and frien...

beyondtellerrand.com

This year's #FrontKon conference is shaping up to be a big one: – Sara Polak (AI from a strategic and philosophical perspective) – @tej.as (AI & future of frontend development) – @matuzo.at (accessibility in React) See you in Prague on October 6th? 🇨🇿 #WebDev #Frontend #Prague www.frontkon.tech

FrontKon#26 – frontend event in Prague

Full-day live conference of the Frontendisti.cz community

frontkon.tech

My current dev setup (mostly UI): — #Cursor, Agent mode. Haven't seen the IDE since v3. — 2–3 agents working simultaneously on one task. — Dictating prompts via Whisper Flow. What’s next? I’m starting to take this setup outside of dev. I need to figure out orchestration. Reading tips?