You asked about Collaboration
18 people built something like it. 18 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2013-01-01 | YCMedisas Medisas builds workflow & collaboration software for hospitals. · medisas.com | gone |
| 2019-06-01 | YCTandem Tandem is a virtual office for remote and distributed teams. · tandem.chat | gone |
| 2022-01-01 | YCOzone Figma for video · ozone.pro | gone |
| 2019-06-01 | YCMuddy The multiplayer browser that knows you · feelmuddy.com | gone |
| 2016-06-01 | YCUbiq Screen-sharing for enterprise conference rooms · goubiq.com | gone |
| 2021-01-01 | YCClay Figma for 3D design · clay3d.io | gone |
| 2020-06-01 | YCDuckly Video chat with real-time collaboration. · duckly.com | gone |
| 2024-01-01 | Your team’s AI powered communication tool · atpatchwork.com | gone |
| 2023-01-01 | YCSorted Instant SaaS management · sorted-lp.webflow.io | gone |
| 2019-01-01 | YCHerald A collaborative repository for user feedback. · heraldhq.com | gone |
| 2013-06-01 | YCFloobits Real-time collaborative editing in the browser with support for… · floobits.com | gone |
| 2011-01-01 | YCSiasto Siasto is a collaboration tool designed for SMBs who use Google Apps,… · siasto.com | gone |
| 2006-06-01 | YCJamglue jamglue.com | gone |
| 2014-01-01 | Virtual activities for remote teams · merrymint.co | gone |
| 2011-06-01 | YCDraft Making Draft. Super simple version control and collaboration for… · draftin.com | gone |
| 2019-01-01 | YCBlitzIQ Note taking workspace for B2B sales teams · blitziq.com | gone |
| 2012-01-01 | Github for designers. We automatically keep track of revisions of… · pixelapse.com | gone |
| 2018-01-01 | YCHaiku Collaboration tools for software companies · haikuforteams.com | gone |
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.