Internet.nl – test tool for modern internet standards

What it does

Internet standards compliance test suite. Contribute to internetstandards/Internet.nl development by creating an account on GitHub.

In the maker’s words, at launch

For the past months we've been working on making our open source tool Internet.nl easier to deploy and develop on. Last week we release version 1.8.0 (https://en.internet.nl/article/release-1.8/) which includes these changes. Tests include: IPv6, DNSSEC, HTTPS/TLS, various security…

• 
  I built a DNS resolver from scratch in Rust – no DNS librariesApr 2026 · github.com · ▲115

  I built a DNS resolver that lets me use https://frontend.numa instead of localhost:5173 — auto-generated TLS certs, WebSocket passthrough, path routing. No mkcert, no nginx, no /etc/hosts.

• 
  ISP.ToolsNov 2025 · isp.tools · ▲15

  Instant global network diagnostics for ISPs and engineers.

• 
  Browser Privacy Test - Modern IP, DNS, VPN Test2017 · avast.com · ▲5

  Test IP, DNS, DNS over TLS, Network info. Complete & Fast.

• AS
  A self hosted alternative to Ngrok2019 · ▲14

  Hi! I am sharing this because it may be useful to others. I created a simple Docker image that lets you easily expose a web app running locally on your dev machine to the Internet, via a proxy server. It is a self hosted alternative to something like Ngrok, which is a paid service if you use custom domains. A small server is cheaper than Ngrok (I use Hetzner Cloud and the cheapest server costs me 3€ per month). I use this method in particular to test HTTP verification with Let's Encrypt for a SaaS app running on my Mac. Hope this is useful :) Code:…

• 
  I just made an All-In-One IP Toolbox form builder open-sourced2024 · github.com · ▲14

  The best IP Toolbox. Check your IP address & geolocation, test IP for WebRTC and DNS IP leaks, run an IP quality check, browser fingerprint check, website availability check, network speed test, global latency test, MTR test, Whois search, and more. - jason5ng32/MyIP

• 
  Globalping.io and Dashboard2024 · globalping.io · ▲11

  Internet and web infrastructure monitoring and benchmarking

• 
  /dev/null▲490

  a social network for devs

  Dev tools · 3d ago · dev-null.sh

• 
  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

• 
  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

• 
  OpenBot▲362

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

  Dev tools · 23d ago · openbot.run

• 
  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

• 
  CoreSpeed▲332

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

  Dev tools · 29d ago · corespeed.io

• 
  Flowla▲1,119

  Digital sales rooms that wow buyers

  Growth · 2023 · flowla.com

• 
  Passionfroot Discovery▲962

  Discover & book top creators to promote your product

  Growth · 2023 · passionfroot.me

• 
  Re:catch▲939

  If Google Form & Calendly had a baby

  Growth · 2023 · recatch.cc

• 
  Pitch 2.0▲886

  Create, share and analyze presentations faster than ever

  Work · 2023 · pitch.com

• 
  LeadDelta 3.0▲883

  CRM built for modern teams & creators powered by AI

  AI · 2023 · leaddelta.com

• 
  SpeedVitals▲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.…

  Dev tools · 2023 · speedvitals.com