IPv6 / IPv4 Connectivity Test

What it does

The fastest browser-based IPv6 connectivity test available. Six comprehensive tests complete in under 15 seconds by running all checks in parallel. The moment you open the page, it simultaneously tests IPv4-only endpoints, IPv6-only endpoints, dual-stack compatibility, latency, and protocol preferences. Everything runs client-side with zero backend latency. No server round-trips, no queuing, no waiting. Written in vanilla JavaScript with no framework overhead

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  IPv6 Test -IPv6 Test2023 · testipv6.net · ▲6

  IPv6 Test

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  IPv6 Systems2022 · ipv6.systems · ▲2

  IPv6 Systems complete IPv6 Test Suite, 25 Global locations.

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  IPv6 Proxies2023 · oxylabs.io · ▲64

  Fast & anonymous IPv6 Proxy, unlimited concurrent sessions

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  A Short IPv6 Guide for Home IPv4 Admins2024 · gist.github.com · ▲69

  A Short IPv6 Guide for Home IPv4 Admins. GitHub Gist: instantly share code, notes, and snippets.

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  Internet Speed Test2023 · internetspeed.my · ▲55

  Test your internet speed with our free online speed test. Check your download speed, upload speed, ping, and jitter instantly.

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  IPv6 Prepared2015 · ▲4

  Checks if your DNS, website and client are ready for IPv6

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  /dev/null▲491

  a social network for devs

  Dev tools · 4d ago · dev-null.sh

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  Run full iOS 16.5 firmware on Android Devices▲443

  Contribute to oosexgang/hackios-xnu-kernel development by creating an account on GitHub.

  Dev tools · 19h ago · github.com

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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 · 29d 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 · 27d ago · github.com

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  OpenBot▲362

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

  Dev tools · 24d 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 · 22d ago · talanoa.email

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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