You asked about Collaboration
29 people built something like it. 0 are gone.
That is 0% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2018-01-01 | 'Figma/Canva for scientists’ · biorender.com | still up |
| 2019-06-01 | YCCoLab Human and AI design review for hardware · colabsoftware.com | still up |
| 2012-06-01 | Secure Collaboration for Technical Teams · mattermost.com | still up |
| 2019-01-01 | YCGoLinks Intuitive, easy-to-remember short links - powered by AI. · golinks.io | still up |
| 2018-01-01 | YCReplit Collaborative in-browser IDE · replit.com | still up |
| 2018-01-01 | YCSlite The self-maintaining knowledge base · slite.com | still up |
| 2019-01-01 | YCTermius Termius is an SSH client with team collaboration features · termius.com | still up |
| 2022-01-01 | YCVelt SDK for adding an agent and human governance layer to your product · velt.dev | still up |
| 2016-01-01 | YCMio Mio powers seamless communication between workplace chat apps. · m.io | still up |
| 2021-06-01 | YCDailybot Make all team work visible — people and AI agents · dailybot.com | still up |
| 2023-01-01 | YCPierre Pierre is a new, opinionated, git platform. · pierre.co | still up |
| 2015-01-01 | YCResolve Software to accelerate construction by finding issues in 3D BIM · resolvebim.com | still up |
| 2023-01-01 | YCIcePanel Design and explain complex software architecture. · icepanel.io | still up |
| 2021-01-01 | YCRoutine AI-native all-in-one workspace for startups · routine.co | still up |
| 2023-01-01 | YCClad Project management software for building infrastructure. · withclad.com | still up |
| 2022-01-01 | Manage & automate customer onboarding and implementation · onboard.io | still up |
| 2022-06-01 | Inventing the solo CFO. · cashboard.co | still up |
| 2019-06-01 | YCTaskade One prompt. One app. One living workspace for teams. · taskade.com | still up |
| 2021-06-01 | YCBeau Workflows for repetitive customer-facing tasks · beau.to | still up |
| 2021-06-01 | YCSigmaOS The new home for your internet 🏡 · sigmaos.com | still up |
| 2012-01-01 | One-click screen sharing with installation-free viewing on all devices · screenleap.com | still up |
| 2020-06-01 | YCRally Rally is Zoom for social events · rally.video | still up |
| 2023-01-01 | YCLinkGrep AI browser copilot for teams · linkgrep.com | still up |
| 2023-06-01 | YCAffinity A compliance training platform built for regulated industries. · itsaffinity.com | still up |
| 2025-01-01 | YCOlive Build internal tools with AI · fromolive.com | still up |
| 2025-01-01 | YCG LNK Simplifying Collaboration for Healthcare Organizations & Professionals · glnkco.com | still up |
| 2024-06-01 | YCOrgOrg Organizational productivity suite for companies · orgorg.com | still up |
| 2022-01-01 | YCMoots The guest intelligence platform for high-value client events · moots.ai | still up |
| 2024-01-01 | Gives non-technical team members agents that work right out of the box · usesolari.ai | still up |
How this compares
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.