You asked about Lab-on-a-chip
22 people built something like it. 5 are gone.
That is 23% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2023-10-05 | store.app | gone |
| 2023-06-23 | editor.vrite.io | still up |
| 2023-07-31 | linkwarden.app | still up |
| 2023-04-18 | play.vercel.ai | moved |
| 2023-10-11 | projecttbr.com | still up |
| 2023-05-16 | oblivus.com | still up |
| 2023-08-15 | lottielab.com | still up |
| 2023-05-15 | sortabase.com | still up |
| 2023-06-08 | visibly.dev | unverified |
| 2023-06-28 | gitopia.com | still up |
| 2023-06-01 | meltano.com | still up |
| 2023-09-26 | hotseatai.com | gone |
| 2023-03-29 | cicada.sh | still up |
| 2023-01-12 | editor.sequencer.party | unverified |
| 2023-10-01 | personamo.com | gone |
| 2023-11-01 | cueued.com | unverified |
| 2023-02-10 | goodquestion.io | still up |
| 2023-09-06 | supernotes.app | still up |
| 2023-08-30 | docuseal.co | moved |
| 2023-03-11 | aidev.codes | still up |
| 2023-06-23 | worldmusictextbook.org | still up |
| 2023-10-18 | shop.pimoroni.com | still up |
| 2023-02-08 | schappi.com | still up |
| 2023-09-10 | vatchai.com | gone |
| 2023-02-10 | topai.tools | unverified |
| 2023-05-25 | umami.recipes | still up |
| 2023-08-28 | trynaming.com | gone |
| 2023-05-12 | bytebase.com | still up |
| 2023-09-12 | sp.bitlet.org | unverified |
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.