You asked about Team Collaboration
16 people built something like it. 4 are gone.
That is 25% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2022-05-25 | arctype.com | moved |
| 2022-02-22 | constructor.dev | unverified |
| 2022-04-28 | edworking.com | still up |
| 2022-07-06 | hypervault.com | still up |
| 2022-09-07 | proto.formation.tools | gone |
| 2022-05-10 | twist.com | still up |
| 2022-01-29 | typhoon-data-org.github.io | unverified |
| 2022-08-23 | zorp.one | still up |
| 2022-08-18 | tryeraser.com | moved |
| 2022-10-23 | highflux.io | still up |
| 2022-08-30 | spotvirtual.com | still up |
| 2022-04-05 | hotpizza.io | gone |
| 2022-06-29 | pablofernandez.tech | still up |
| 2022-08-14 | yolinks.app | gone |
| 2022-05-24 | aviator.co | still up |
| 2022-02-14 | slite.com | still up |
| 2022-10-24 | letterloop.co | still up |
| 2022-10-10 | citodata.com | gone |
| 2022-05-17 | app.docare.io | still up |
| 2022-06-02 | gretel.ai | moved |
| 2022-12-21 | determinate.systems | 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.