Reposted by Vinicius DallacquaBarry Pollard @tunetheweb.com · 23/06/2026It's happening... We've asked Chromium API owners for permission to ship The Soft Navigation work to allow measuring of Core Web Vitals for SPAs!! 2197
Reposted by Vinicius DallacquaPaul Kinlan @paul.kinlan.me · 01/05/2026I'm pretty certain that web mcp has the opportunity to be everything that I wanted web intents to be and it's only possible since the invention of llms aifoc.us/webmcp-is-th... 1135
Vinicius Dallacqua @webx.bsky.social · 13/04/2026WebMCP is a great new spec and I've been playing around with it in my own implementation into my web browsing agent harness. It brings interactions to a fraction of the time and sessions get faster and also 'cheaper' for the models. 120
Reposted by Vinicius DallacquaAlex Russell @infrequently.org · 11/04/2026This React -> Web Components post by the MDN team touches on challenges and solutions I've seen dozens of times over frontend's lost decade. Kudos to them for the improvements in performance, and the bravery to tell the story in an unvarnished way: developer.mozilla.org/en-US/blog/m...developer.mozilla.orgUnder the hood of MDN's new frontend | MDN BlogYou may have spotted that MDN has a new frontend. There's plenty happening under the surface, so let's unpack the technologies we chose, the architectural decisions we made, and why we did a rebuild… 15910
Vinicius Dallacqua @webx.bsky.social · 13/03/2026I've been playing with building a personal assistant meets browsing assistant for mobile web and had to experiment with WebMCP as part of the experience. It's amazing to see the experience when the browsing agent performs tasks instantly instead of wasting turns to perform a task. 100
Reposted by Vinicius Dallacquarich harris @rich-harris.dev · 10/03/2026myth: LLM-assisted coding means everyone is forced to use The Popular Framework forever reality: agents will happily migrate your entire app to The Good Framework inertia is a powerful drug but we are entering a world without moats, plan accordingly strawberrybrowser.com/blog/react-t...strawberrybrowser.comHow we Rewrote 130K Lines from React to Svelte in Two WeeksWe ported Strawberry's entire frontend from React to Svelte in two weeks using coding agents. It made the browser 2x faster. 1424227
Reposted by Vinicius DallacquaJoan León @nucliweb.net · 10/03/2026When a Skill activates, its SKILL.md loads into context. The webperf-loading was 24 KB, most of it unnecessary to decide which script to run I applied progressive disclosure and brought it down to 11 KB #WebPerf #Performance #AI #AIAgent #AIPerf 111
Reposted by Vinicius DallacquaMax Novem @maxnovem.art · 17/02/2026I talk often about breaking out of walled gardens, that you don't have to be on corporate-web in order to be on the web. This is a fantastic article about the problem and how to (pretty easily) fight it. Well worth reading. Also, @strange.website is a rad human being. henry.codes/writing/a-we...henry.codesA Website To End All Websites | Henry From OnlineHow to win the war for the soul of the internet, and build the Web We Want. 2289
Vinicius Dallacqua @webx.bsky.social · 10/02/2026I have a 'neuve' side project and I'll start writting more about it here. This time the writeup brings some of my experience when developing the browsing aspect of, I stopped telling AI agents what to build. 100
Vinicius Dallacqua @webx.bsky.social · 30/01/2026What a banger of an article developer.chrome.com/blog/designi... Great job by the @developer.chrome.com team and as someone who has been very deep into the codebase and actually saw the evolution written in this article, and extracted it to build PerfAgentdeveloper.chrome.comDesigning DevTools: Efficient token usage in AI assistance | Blog | Chrome for DevelopersLearn how the Chrome Tooling team optimized token usage for AI assistance, and discover techniques for more efficient data usage with LLMs. 100
Reposted by Vinicius DallacquaBrandon Dail @brandondail.com · 27/01/2026Here's your friendly reminder that CSS selectors are global and evaluated RTL, so if you have selectors that are very broad like `.container > div` you might be impacting performance in a measurable way 🙈 Before and after profile of server switching after some selector optimizations in @discord.com 1316518
Vinicius Dallacqua @webx.bsky.social · 31/12/2025Wrapping up the year with my article for the Perf Calendar with my write up about how I ended up creating agent.perflab.io! It has AI, it has Perf…what else could you want 😎🔥 I’m always happy to see my content in the Performance Calendar! Thanks for the initiative @stoyan.me !agent.perflab.ioPerfAgent - AI-Powered Web Performance AnalysisGet expert insights on Core Web Vitals and performance optimization from an AI specialized in web performance analysis. 031
Reposted by Vinicius DallacquaJoan León @nucliweb.net · 07/11/2025My gist “How Browsers Work” has been updated with a new post: “How modern browsers work” by @addyosmani.bsky.social gist.github.com/nucliweb/c16... #WebPerf #Browser #WebDevelopmentgist.github.comHow Browsers WorkHow Browsers Work. GitHub Gist: instantly share code, notes, and snippets. 2287
Vinicius Dallacqua @webx.bsky.social · 21/10/2025I’m super hyped and happy to announce that I’m getting even deeper into helping agents reason about software quality as I join QA.tech! Since I’ve started working on PerfLab and then PerfAgent this has become an obsession. Now I get to do that full-time and I could not be more thrilled! 030
Reposted by Vinicius DallacquaIvan Akulov @iamakulov.com · 20/10/2025something very cool to see: Chrome recently shipped automatic <link rel="prefetch"> for all links in viewport you could do it previously with libs like Quicklink, but it’s super cool to see this implemented natively (it’s off by default, enabled with one html tag) 283
Vinicius Dallacqua @webx.bsky.social · 20/09/2025Wrapping up the writting part for my talk at @perfnow.nl this weekend and I'm beyond excited for this one. Prepare for a deep dive folks! 041
Reposted by Vinicius DallacquaHenri Helvetica 🧑🏾🚀🇭🇹 @henrihelvetica.bsky.social · 11/09/2025✨SPDY STREAM 010 ✨ with Jacob Groß 📢 As mentioned during yesterday's stream, Jacob is our next guest, and we shall cover tag mgmt and the deleterious effect they can have on performance, esp web vitals and possible solutions. Join us! 📆 Wednesday Sept 17th ⏰ 1PM EDT 🔗 bit.ly/spdy-stream-010bit.lySPDY STREAM with Jacob Groß 🇩🇪In this episode, we are joined by Jacob Groß to discuss tag managers and their often detrimental effect on website performance. We will explore how tag managers can impact performance in a multitude o... 111
Vinicius Dallacqua @webx.bsky.social · 05/09/2025Hello everyone, I have just heard that the company I'm a lead engineer for is going to downsize so I'm going to look for the next thing from next week. I'm looking to work with AI engineering and am shipping lots of different code automations and agent workflows. 112
Vinicius Dallacqua @webx.bsky.social · 04/09/2025I'm beyond excited to share a stage with so many great names! This is a special event to me and I'm super hyped to share a bit of my story with you all ❤️ 020
Reposted by Vinicius DallacquaBarry Pollard @tunetheweb.com · 02/09/2025Really excited to be speaking @perfnow.nl this year—my favourite conference run by some of my favourite people! If you're into web performance (or wanna be!) and like a great conference with a super friendly vibe then pop along to Amsterdam at the end of October. Tickets selling fast! perfnow.nlperfnow.nlperformance.now(); 30th and 31st of October, AmsterdamOn 30th and 31st of October, 2025, the sixth edition of performance.now() will take place in Amsterdam—a single track conference, covering today’s most important web performance insights. 32914
Reposted by Vinicius DallacquaMCP Developers Summit @mcpdevsummit.ai · 29/08/2025Google’s @jackf.io is speaking at the London MCP Dev Summit 🎤 Topic: Lessons learned building the Chrome DevTools MCP Server 👉 Don’t miss it: buff.ly/MwmiH5E (early bird pricing ends in 2 days!) #MCPservers #DevToolsAI 175
Vinicius Dallacqua @webx.bsky.social · 26/08/2025Whist trying out my demo for the Agentic Perf Analysis and Debugging, I managed to use my V0 and my DevTools MCP servers to debug one of my V0 demo chats. Using animation frame insights no less 😃 010
Reposted by Vinicius Dallacquagilbertococchi @gilbertococchi.bsky.social · 25/08/2025performance.now() is coming to Amsterdam this October! This event is great both for the inspirational talks as well as for the opportunity to meet folks from different companies and backgrounds to discuss how to successfully tackle web performance challenges! 055
Reposted by Vinicius Dallacquappk 🇪🇺 @quirksmode.org · 25/08/2025performance.now(), the web performance conference, 30th and 31st of October, Amsterdam. Single track, the best speakers in the industry, plenty of your performance-mad peers around to have fascinating conversations. What's not to like? perfnow.nlperfnow.nlperformance.now(); 30th and 31st of October, AmsterdamOn 30th and 31st of October, 2025, the sixth edition of performance.now() will take place in Amsterdam—a single track conference, covering today’s most important web performance insights. 0227
Reposted by Vinicius DallacquaJSNation @jsnation.gitnation.org · 12/08/2025Gain insights from @webx.bsky.social at the past conference talk on #AnimationFrames, #INP, and #LoAF APIs for responsive web applications! #webdev gitnation.com/contents/what-is-an-a… 011
Vinicius Dallacqua @webx.bsky.social · 08/08/2025We're almost there! After spending the week hacking OAuth support into Mastra MCP client class and getting the toolcall aproval workflow to an MVP state this sprint is soon coming to an end. 000
Vinicius Dallacqua @webx.bsky.social · 05/08/2025This will be lots of fun. get ready to see how @developer.chrome.com can help you leverage AI to fix problems, but also get a glimpse of how AI native DevTools can look like 👀 Tune in live here: gdg.community.dev/events/detai...gdg.community.devReal Problems, Real Tools: AI & Web Performance | Google Developer GroupsVirtual Event - Join us for the first-ever GDG Web Stockholm event — a brand-new chapter focused on the future of web development!This o... 010
Vinicius Dallacqua @webx.bsky.social · 30/07/2025There's a larger goal of mine here, my experiments with MCP is to try to better understand how to enable good primitives for AI native systems. 111
Vinicius Dallacqua @webx.bsky.social · 30/07/2025Updates on PerfAgent, after spending some time implementing v0.perflab.io MCP server it's now time to create PerfAgent's MCP client. It will be a great way to expose the agent to external services and agents such as @sentry.io Seer, and my own servers too, like V0. 100
Vinicius Dallacqua @webx.bsky.social · 21/07/2025Here's a thread with some of my photos from @developers.google.com I/0 Connect in Berlin from earlier this month #Googlel0Connect in 35mm film 🎞️ 271
Vinicius Dallacqua @webx.bsky.social · 18/07/2025Alright, it's time! (unofficial) V0 MCP server is now live at v0.perflab.io Interact with V0 straight from your favourite AI code editor - Start chats with V0 using your own codebase for quick UI iterations - Connect to your favourite agent to drive V0 - Server exposes tools, prompts and assetsv0.perflab.ioV0 MCP ServerModel Context Protocol (MCP) server that exposes v0.dev APIs through the Streamable HTTP pattern. Built with Hono framework and deployed on Vercel. 010
Vinicius Dallacqua @webx.bsky.social · 17/07/2025Now wait until you see the kind of agentic workflows you can have with V0 and DevTools via MCP... It's kinda magical to see. 000
Vinicius Dallacqua @webx.bsky.social · 17/07/2025Finally got my @v0.dev MCP server deployed to @vercel.com and successfully implemented the custom OAuth flow (to just just API key exchange). 100
Reposted by Vinicius DallacquaPaul Kinlan @paul.kinlan.me · 16/07/2025I've been thinking a lot about how we might imbue HTML elements with more enhanced features. I made some neat on-device elements that could be this useful, but I was actually pretty proud that I could wrap a `<input type=file accept=image/*>` and enable images to be generated. aifoc.us/elements/aifoc.uselementsAs much as struggle with on-device processing and the quality of its output compared to server models, I am excited by some of the APIs that are being built into browsers that are backed by LLMs and o... 052
Vinicius Dallacqua @webx.bsky.social · 12/07/2025Hacking on something over the weekend after the V0 public SDK was announced. Up next: integrate V0 MCP <> DevTools MCP for self healing generations 120
Vinicius Dallacqua @webx.bsky.social · 10/07/2025Yesterday I had an evening jam with Charles Maddock at Strawberry browser HQ. Aside from having a great conversation with the team and tapping into some great insights and ideas, the goal was to create a prototype MCP client for Strawberry and experiment with making it a native protocol. 110
Vinicius Dallacqua @webx.bsky.social · 09/07/2025The day has finally come! PerfAgent is now publicly available under Apache 2.0: github.com/PerfLab-io/p... Using: - @aisdk - @mastra_ai - @nextjs - @DrizzleORM - @shadcn The repo is still very much under development so any feedback is appreciated 🫡github.com 040
Vinicius Dallacqua @webx.bsky.social · 02/07/2025Lets hang out and talk about AI, DevTools and Perf! 121
Vinicius Dallacqua @webx.bsky.social · 30/06/2025Today I've invited 26 more people to try out PerfAgent. I'm closing in on the opensource milestone (just gotta cleanup more before I can have an open house 😅) I'm looking to expand trace support to OTEL soon, converting OTEL spans into DevTools. 010
Reposted by Vinicius DallacquaPaul Kinlan @paul.kinlan.me · 30/06/2025Token slinging: aifoc.us/token-slingi... I've been thinking about the effects of tokens and how it impacts direct web development. Feels like there is a change in that we are now back to paying for our IDEs (even if it's indirectly).aifoc.ustoken slinging17 years ago I discovered Google App Engine. It was the first truly scalable “serverless” platform that I had ever seen. I could just write an HTTP handler and it would scale to meet the demand. It wa... 052
Vinicius Dallacqua @webx.bsky.social · 30/06/2025When thinking about perf, now living in Europe, it is easy to forget how skewed our experiences can be. Most of this map is dark, meaning that has little or no 5G connectivity. Though I'm impressed with how India is connected, Brazil (where I come from) is unsurprisingly dark. 000
Reposted by Vinicius DallacquaHenri Helvetica 🧑🏾🚀🇭🇹 @henrihelvetica.bsky.social · 27/06/2025ICYMI ✨ SPDY STREAM ✨ 001 was published this week. In a du jour discussion, @webx.bsky.social and I talk about *PERF AGENT*, an AI-powered insights tool that makes optimizations more accessible. Enjoy! youtu.be/0Zzhhin79T8?...youtu.beSPDY STREAM 001 w/ Guest Vinicius DallacquaYouTube video by Henri Helvetica 031
Vinicius Dallacqua @webx.bsky.social · 27/06/2025@perfnow.nl is for any perfhead, enthusiast or anyone into deep technical discussions THE event to go to! Come hang out with us! This year we have a really stacked lineup, and also there's me 😁! 041
Vinicius Dallacqua @webx.bsky.social · 25/06/2025Can't wait to share more about this! First of a series looking into using AI and building with it effectively. Perf and AI have lots to learn with each other, and the time to experiment is now! 010
Vinicius Dallacqua @webx.bsky.social · 24/06/2025A really good first try on the DevTools MCP server, gathering interaction insights and also 'general' insights using animation frames as a base 'unit of work' and extracting info using the AI helpers baked into @chromium.social itself. Profiling and fixing perf cannot get any easier than this. 000
Vinicius Dallacqua @webx.bsky.social · 23/06/2025DevTools 🤝 MCP - Or as @tej.as named it when I was pitching this over at @jsnation.gitnation.org in our chats....'Self healing mode'. Quick tease of something I've been hacking over the weekend as I prepare for I/O connect and just before. www.youtube.com/watch?v=hP_e...youtube.comDevTools 🤝 MCPYouTube video by That Perf Guy 121
Vinicius Dallacqua @webx.bsky.social · 18/06/2025Talking about perf is always fun and chatting with @henrihelvetica.bsky.social is always a pleasure! It was a great chat and looking forward to catch up with the next guests! 010
Vinicius Dallacqua @webx.bsky.social · 18/06/2025Come hangout today! I'm super excited to chat about the stuff I've been cooking with @henrihelvetica.bsky.social 011