You asked about Lab-on-a-chip
24 people built something like it. 3 are gone.
That is 13% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2021-12-08 | syncedstore.org | still up |
| 2021-09-17 | ish.im | unverified |
| 2021-08-18 | getsturdy.com | unverified |
| 2021-02-03 | alvin5.com | still up |
| 2021-03-18 | inventhub.io | unverified |
| 2021-12-09 | paulbricman.com | still up |
| 2021-01-01 | sharepad.io | still up |
| 2021-02-09 | pep.dev | still up |
| 2021-10-04 | fuelfinder.uk | gone |
| 2021-10-16 | thinklikeabot.com | unverified |
| 2021-07-27 | ludus.one | still up |
| 2021-12-03 | everyonedraw.com | still up |
| 2021-02-14 | galaxy.opensyllabus.org | still up |
| 2021-01-25 | jel.app | gone |
| 2021-10-13 | jsonme.com | unverified |
| 2021-11-02 | archipelago.art | still up |
| 2021-09-07 | arthurdouillard.com | still up |
| 2021-04-28 | emailflow.app | unverified |
| 2021-03-03 | secoda.co | still up |
| 2021-11-24 | aaronmorais.com | still up |
| 2021-09-15 | cplusplus.com | still up |
| 2021-05-18 | commons.so | moved |
| 2021-09-28 | pilabor.com | still up |
| 2021-06-16 | collab.academy | still up |
| 2021-11-05 | lity.cc | still up |
| 2021-04-08 | f-droid.org | still up |
| 2021-09-08 | mockachino.com | gone |
| 2021-12-07 | renote.so | unverified |
| 2021-04-23 | git.ce9e.org | still up |
| 2021-06-26 | annotate.pixlab.io | still up |
| 2021-09-27 | labelflow.ai | still up |
| 2021-08-29 | codekhana.xyz | unverified |
| 2021-01-18 | turingpi.com | 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.