WebVitals by Sentry

What it does

Analyze your website's Core Web Vitals instantly. Get detailed insights into LCP, FID, CLS, FCP, INP, and TTFB performance metrics. Improve your SEO and user experience with real-world data.

Measures the time it takes for the largest text or image element to render on a webpage. Measures the total amount of unexpected layout shifts that occur during the entire lifespan of a webpage. Measures the time from when a page starts loading to when any part of the page's content is first displayed. Measures the duration from when a page starts loading to when the first byte of content is received from the server. Everything you need to know about Web Vitals and our analysisfrom webvitals.com

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  SpeedVitals2023 · speedvitals.com · ▲829

  Hi HN, I’m Kashish, one of the co-founders of SpeedVitals, a platform for testing & monitoring website performance with a major emphasis on Core Web Vitals. Until now, our platform has only focused on Synthetic/Lab testing, such as Lighthouse tests and TTFB tests. But now, we have developed a Real-User Monitoring platform that doubles up as a Web Analytics tool. One major feature we have that most RUM tools lack is Performance Audits. Just like Lighthouse audits work on Lab test data, our audits work across all the real-user visits and gives suggestions on what task to prioritize first.…

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  Core Web Vitals in WebSite Auditor2021 · link-assistant.com · ▲164

  Easy, automated core web vitals bulk audit and reporting

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  Instant Vitals2021 · ▲70

  Instant vitals helps you find core web vitals issues

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  VitalPulse: Bulk Core Web Vitals CheckerJul 2026 · github.com · ▲3

  Bulk Core Web Vitals Scanner & Export Tool

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  PageVitals2023 · pagevitals.com · ▲76

  Keeps your website fast, page speed monitoring and CrUX

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  Web Vitals Robot2021 · pagespeedplus.com · ▲203

  Get alerts when your pages' Web Vitals go down

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  /dev/null▲484

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

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  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 28d ago · github.com

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  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 26d ago · github.com

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  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 23d ago · openbot.run

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  Talanoa▲346

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 21d ago · talanoa.email

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  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 28d ago · corespeed.io

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  Cursor 2.0▲957

  Our first coding model and new interface for agents

  AI · Oct 2025 · cursor.com

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  Flask▲806

  Notion + Loom, for video collaboration.

  AI · 2025 · flask.do

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  Strange Attractors▲804

  I went down the rabbit hole on a side project and ended up building this: Strange Attractors(https://blog.shashanktomar.com/posts/strange-attractors). It’s built with three.js. Working on it reminded me of the little "maths for fun" exercises I used to do while learning programming in early days. Just trying things out, getting fascinated and geeky, and being surprised by the results. I spent way too much time on this, but it was extreme fun. My favorite part: someone pointed me to the Simone Attractor on Threads. It is a 2D attractor and I asked GPT to extrapolate it to…

  AI · Oct 2025 · blog.shashanktomar.com

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  Orchestra▲793

  A chat-centric workspace for builders and modern teams

  Work · 2025 · orch.so

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  Autism Simulator▲779

  Hey all, I built this. It’s not trying to capture every autistic experience (that’d be impossible). It’s based on my own lived experience as well as that of friends on the spectrum. I'm trying to give people a feel for what masking, decision fatigue, and burnout can look like day-to-day. That’s hard to explain in words, but easier to show through choices and stats. I'm not trying to "define autism". I’ve gotten good feedback here about resilience, meds, and difficulty tuning. I’ll keep tweaking it. If even a few people walk away thinking, "ah, maybe that’s why my coworker struggles in those…

  Life & fun · 2025 · autism-simulator.vercel.app

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  Director▲768

  Lovable for web automation

  AI · 2025 · director.ai