iiinova — where your digital self keeps evolving

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Bruno Simon @bruno-simon.bsky.social · 09/12/2025

6 years of thinking I can make a better portfolio. 1 year of actually building it. My new portfolio is LIVE 🚀 Please, don't break anything! 👉 bruno-simon.com

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Barry Pollard @tunetheweb.com · 18/11/2025

Do you want a better Waterfall in Chrome DevTools? Then plus 1 this bug: issues.chromium.org/issues/34649... It's one of the things we're considering working on next but need to see that the interest is there, and it's not just a thing I'd like to see...

issues.chromium.org

Chromium

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juan ferreras @juanf.is · 18/11/2025

I've asked myself the same question earlier today. I'm pretty sure they're reporting false positives due to some uncaught/unexpected error or just not running at all and the UI assumes no stored error = success

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juan ferreras @juanf.is · 05/11/2025

This is super interesting! Thanks to the team for open sourcing it! I'm curious if the goal is eventually to support deploying it (f.e. to CF Browser Rendering), or for it continue being a local CLI tool

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Alex Russell @infrequently.org · 17/07/2025

I spent hours and hours trawling through the sites of some of the world's best web developers, and despite the horrors I regularly experience in my daily work in Big JavaScript Territory, what I saw left me hopeful: infrequently.org/2025/07/links/

infrequently.org

Links? Links! - Infrequently Noted

Alex Russell on browsers, standards, and the process of progress.

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Mayank @mayank.co · 09/07/2025

bluesky won't enable this switch by default, but you should.

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juan ferreras @juanf.is · 09/07/2025

I'm happy to send a few pointers if you want to send/DM me the URL. (I don't sell consultancy, but building a freemium tool related and definitely benefit from dogfooding it with real examples) JFYI if you're looking at PageSpeed Insights: do make sure you're prioritizing real users data over lab

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Kevin Farrugia @imkev.dev · 09/07/2025

I'm looking to recruit talented senior engineers that have experience related to web performance monitoring and optimization. If that sounds like you—or someone you'd highly recommend—please send me a DM and I’ll share more details! The role is 100% remote and async-first.

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juan ferreras @juanf.is · 09/07/2025

Good luck with the search! You should post on the webperf slack's jobs channel

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juan ferreras @juanf.is · 08/07/2025

Congrats, Daniel! Sounds like a fantastic fit to let you all continue pushing on the open source vision without having to stress on the economics.

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Tim Kadlec @tkadlec.bsky.social · 01/07/2025

This is incredible data from @dbelson.com showing HTML requests from crawlers versus referrals from that platform. Very easy to see the cost of AI here. ClaudeBot: 70.9k requests : 1 referral (!!!) OpenAI: 1.6K : 1 Perplexity: 202.4 : 1 blog.cloudflare.com/ai-search-cr...

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juan ferreras @juanf.is · 01/07/2025

This sounds super interesting. I'm a bit skeptical on how unit economics would work – but compared to we'll-try-to-scrape-everything-we-can-unless-you-can-sue-us-or-fully-block-us, it feels like a great alternative. Would love to see any leading provider send a positive signal..

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juan ferreras @juanf.is · 27/06/2025

I have! For a few tiny details. Like the logo moves from the main "marketing" layout to the "docs" layout on the sidebar, some h1s transition too. Honestly it's works great and it's quite fun

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juan ferreras @juanf.is · 26/06/2025

Oh no - that's actually quite relevant for a side project of mine haha, thanks!

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juan ferreras @juanf.is · 26/06/2025

Postmark/Buttondown come to mind but <100 emails/mo unfortunately. This list might come in handy buttondown.com/comparison-g...

buttondown.com

Email service providers comparison

A comparison of the best ESPs

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juan ferreras @juanf.is · 24/06/2025

Great one! It might be me but it feels like the team is on a great streak lately!

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juan ferreras @juanf.is · 24/06/2025

Cloudflare's Containers are now in public beta. blog.cloudflare.com/containers-a... I was recently struggling to get a WASM version of brotli dictionary_generator (skill issue), but it's a very powerful unlock to just deploy a dockerfile if you need any specific runtime/CPU-intensive work

blog.cloudflare.com

Containers are available in public beta for simple, global, and programmable compute

Cloudflare Containers are now available in public beta. Deploy simple, global, and programmable containers alongside your Workers.

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Henri Helvetica 🧑🏾‍🚀🇭🇹 @henrihelvetica.bsky.social · 17/06/2025

✨ THE SPDY STREAM ✨ is part of an effort to highlight people in performance and their projects. Show 001 tomorrow w/ @webx.bsky.social Join us! Want a LinkedIn link? DM me. ✨ THE SPDY STREAM ✨ 📅 Wednesday June 18th ⏰ 1pm EST, 13h00 CET 🗣️ Henri 🇨🇦, Vinicius 🇸🇪 🎟️ RSVP: bit.ly/spdy-stream-001

Image of a rally car in early evening with headlights on driving down a dusty road. Caption: SPDY stream. Performance, people, projects. Wednesday, June 18. Hosted by Henri Helvetica. 1pm EST

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juan ferreras @juanf.is · 17/06/2025

Unless it has a noticeable impact (e.g. you're incurring in some serious costs) I'd always assume good faith and err on the side of caution. Did you have a single POC? Do they still work there? Can you reach them via other social network? Good luck sorting it out

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juan ferreras @juanf.is · 14/06/2025

Oh I can absolutely relate to this one! So much fun sometimes on polishing certain interactions with animations, spending a day or two on fixated on whether buttons are _clicky_ enough. Good luck and hope you have a lot of fun with it!

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juan ferreras @juanf.is · 13/06/2025

That's quite dystopian. Wondering whether it's a person or an AI on the other side of a chat? Of course. But making DMs *longer* with AI? That's even more disrespectful somehow.

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juan ferreras @juanf.is · 13/06/2025

Cloudflare report on yesterday (Jun 12 2025) outage. Definitely respect the non name-shaming vendors policy and showing accountability/ownership instead. Very impressed by how detailed it is given it's been less than 24hs from it. blog.cloudflare.com/cloudflare-s...

blog.cloudflare.com

Cloudflare service outage June 12, 2025

Today, June 12, 2025, Cloudflare suffered a significant service outage that affected a large set of our critical services, including Workers KV, WARP, Access, Gateway, Images, Stream, Workers AI, Turn...

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juan ferreras @juanf.is · 12/06/2025

>Their infra is fully independent AFAIK It isn't publicly disclosed what products they rely on AFAIK but GCP is listed as a sub-processor for Cloudflare. Very likely GCP outage is affecting downstream Cloudflare (bringing KV and other highly critical services fully down)

cloudflare.com

Sub-Processors - For Cloudflare services

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juan ferreras @juanf.is · 12/06/2025

Yeah - my only concern an hour ago was even Cloudflare was not updating their status page after more than a few minutes. I'd assume they were struggling to get access to do it, still miles ahead than other providers in my very personal opinion

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juan ferreras @juanf.is · 12/06/2025

GCP is having a full outage (and might be the root cause) status.cloud.google.com/incidents/ow... It's pretty interesting how many platforms (Shopify, Replit, etc.) directly named them on their incidents (probably mad because status page was green until just now).

status.cloud.google.com

Google Cloud Service Health

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juan ferreras @juanf.is · 12/06/2025

"No major incidents"

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Ivan Akulov @iamakulov.com · 12/06/2025

⚡ Lighthouse (incorrectly) punishes preloading If you’re like me, you probably struggled with Lighthouse scores at least once. “I already optimized everything; why is my score still yellow?” Often, the cause is there’s more to optimize. But sometimes, it’s Lighthouse itself.

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John Mueller @johnmu.com · 11/06/2025

Yesterday's hit: llms.txt Today: llms-full.txt Tomorrow: llms-full-final.txt Twomorrow: llms-full-final-v2-this.txt

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juan ferreras @juanf.is · 10/06/2025

Cloudflare has an odd "Minor Service Outage" legend without much notice (odd as they are usually more descriptive when ever there's something going on?)

cloudflare's status page shows a warning alert that reads "minor service outage"

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juan ferreras @juanf.is · 09/06/2025

Great question – to me it's even worse: if you had a free tier as a lead gen strategy, now you might get A LOT of throw-away AI projects. If Neon had a non-trivial cost per free db (e.g similar as to what made Planetscale remove theirs earlier) – it might have forced them to look for an acquisition

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juan ferreras @juanf.is · 09/06/2025

That's perfect! Thanks for the response

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juan ferreras @juanf.is · 09/06/2025

Super interesting! Do you know if you'll open source post-release? Every time I see your old portfolio and the new dev blogs, it makes me nostalgic for the old MicroMachines video games. I'm curious on how fun (and challenging, and rewarding) it'd be to build a small multiplayer experiment on top

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WeRateDogs @weratedogs.com · 05/06/2025

We only rate dogs. This is Chewbacca having a spa day. He's trying to relax. Please give him some privacy. 13/10

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juan ferreras @juanf.is · 04/06/2025

I agree (definitely your earlier post sparked the thought!) but I mean more with the Web as a medium. I think stagehand/others are exploring this, but I think the angle still is more towards replace E2E, scraping and extracting data, etc. I'd be curious if a version of local-only works reliably

stagehand.dev

Stagehand: A browser automation SDK built for developers and LLMs.

Stagehand makes it easy for both developers and agents to control a browser. Write code once, run it anywhere.

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juan ferreras @juanf.is · 04/06/2025

"AI should do my laundry" is something that not everyone agrees with but.. I'm surprised that tools that literally do all the errands I'm lazy to do haven't been nailed before trying to "replace" someone's job. E.g. repeat my coffee order, send invoice, pay rent, etc. Ideally with local models?

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juan ferreras @juanf.is · 03/06/2025

That's actually a pretty interesting perspective! Are disks designed for such high utilization like RAM/CPU though (genuine question)? I had node throw "ENOSPC: no space left on device" saving a file so I think (1) the job that discards stale caches and (2) the max safe thresholds are a bit off 😂

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juan ferreras @juanf.is · 03/06/2025

Ohh that is absolutely part of my problem too. Thanks for sharing!

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juan ferreras @juanf.is · 03/06/2025

Parkinson's Law: all caches will expand themselves until your disk has basically no space left, regardless of the disk's total size.

a 512 GB SSD filled with up to 210 GB of "system data". I sincerely hope the system has downloaded ~10 movies in full 4K resolution, and it's not just caches and logs. But it's always caches and logs

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juan ferreras @juanf.is · 30/05/2025

I'd love to help anyway I can. I'm the one who reported github.com/cloudflare/w... some time ago. However, in the past I wasn't able to measure the same delay using workerd locally – so not sure I'd be able to validate much (beyond just general smoke testing to see if anything's odd)

github.com

🐛 BUG: Workers TTFB slows down based on unused dynamic imports (additional modules) · Issue #2372 · cloudflare/workerd

Which Cloudflare product(s) does this pertain to? Pages, Workers Runtime, Wrangler core What version(s) of the tool(s) are you using? wrangler 3.38.0 What version of Node are you using? 18.18.2 Wha...

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Paul Irish @paul.irish · 28/05/2025

The Chrome DevTools Performance panel just leveled up! 🚀 Here's a 69-second taste of the new hotness.

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Rick Viscomi @rviscomi.dev · 21/05/2025

🔥 Simpler browser support info has landed in VS Code! Hover over any CSS property or HTML element or attribute and now you'll see its Baseline status 📝 web.dev/blog/baselin...

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PerformanceObserver @performanceobserver.dev · 30/04/2025

Ep. 3 will be on May 14! We will have Medhat Dawoud walking us through the process of building fast websites for everyone, and Amila Welihinda explaining how to profile JavaScript in production. #webperf Details at performanceobserver.dev

performanceobserver.dev

PerformanceObserver: A virtual web perf meetup

Join the PerformanceObserver virtual performance meetup to get all the latest web performance news and hang out with the community.

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juan ferreras @juanf.is · 07/05/2025

Ohh I haven't thought of this in a long time. It accidentally reminded me of the old but goldie study from YouTube. TL;DR: improved perf => metrics actually worsened => folks who simply could not use YouTube before (+20mins of wait) at least now had a chance (~2mins) and started using it

blog.chriszacharias.com

Page Weight Matters • Chris Zacharias

Three years ago, while I was a web developer at YouTube, one of the senior engineers began a rant about the page weight of the video watch page being far too large. The page had ballooned to as high a...

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juan ferreras @juanf.is · 06/05/2025

On both it was easy to screw up and cross the network boundary with a mountain of data but tooling can help there. I'm excited both exist! Astro seems to be loved, and I think RSC will convince those who still don't see it eye to eye (these posts from Dan are much appreciated on that front). 4/4 🏁

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juan ferreras @juanf.is · 06/05/2025

RSC shines if those limits are less obvious, or might change over time. Simpler to re-use, to move from one model to the other. More complexity but a LOT more tools in your kit to provide a better experience for (the long tail specially of) users, than with client-only SPAs. 3/4

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juan ferreras @juanf.is · 06/05/2025

IMHO Astro definitely shines for as they say “content-driven” websites, where interactivity is sprinkled in on islands naturally and you kind of know those boundaries already. Docs, marketing, ecomm, etc. It's better to always err on the side of shipping less when session length can be tiny. 2/4

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juan ferreras @juanf.is · 06/05/2025

Very interesting read! I’ve played with both Astro and RSC (via Next.js) in my side project. Ended up using both (Astro serves the www. and proxies Next so the user can’t really tell there’s two different properties altogether). Sorry, I have a thing for over engineering my pet projects. 1/4

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Jacob "kurtextrem" Groß @kurtextrem.de · 30/04/2025

Chrome 136+ ships a new V8 version that supports a "compile hint", which makes V8 parse and compile all functions in that file eagerly. Great for entry points – where you know all functions will very likely be used. Less so as 'one weird trick to make all your JS faster'.

In our experiment with popular web pages, 17 out of 20 showed improvements, and the average foreground parse and compile times reduction was 630 ms.

You can trigger eager compilation for the whole file by inserting the magic comment
```
//# allFunctionsCalledOnLoad
```
at the top of the file.

This feature should be used sparingly though - compiling too much will consume time and memory!

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