You asked about Data Science
70 people built something like it. 25 are gone.
That is 36% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2021-09-06 | cogram.ai | unverified |
| 2021-01-27 | datapane.com | still up |
| 2021-06-14 | routinedb.com | unverified |
| 2021-04-17 | projectlovelace.net | still up |
| 2021-05-05 | csweapons.com | still up |
| 2021-04-20 | manuzoid.com | still up |
| 2021-02-03 | ytt-tech.com | unverified |
| 2021-04-22 | dbgate.org | moved |
| 2021-03-24 | arc.tripl.ai | still up |
| 2021-11-11 | sheetmonkey.io | still up |
| 2021-09-22 | noteship.com | still up |
| 2021-07-27 | tinkerstellar.com | still up |
| 2021-05-08 | rondb.com | still up |
| 2021-07-09 | tilemaker.org | still up |
| 2021-06-28 | optery.com | still up |
| 2021-12-07 | simonwillison.net | still up |
| 2021-04-18 | aidmin.io | still up |
| 2021-07-10 | styvio.com | gone |
| 2021-03-27 | stackby.com | still up |
| 2021-11-07 | hewellapp.com | unverified |
| 2021-05-13 | privacybot.io | gone |
| 2021-08-31 | docs.beryl.dev | gone |
| 2021-02-04 | shopgram.io | still up |
| 2021-08-26 | hippobase.io | still up |
| 2021-04-05 | thenewseachday.com | unverified |
| 2021-11-11 | tablum.io | still up |
| 2021-09-22 | getvero.com | still up |
| 2021-11-25 | ipnetdb.com | still up |
| 2021-12-07 | app.openindoor.io | gone |
| 2021-12-14 | dataherald.com | gone |
| 2021-09-20 | oikolab.com | still up |
| 2021-03-30 | fsynth.com | still up |
| 2021-09-21 | qodebeam.com | gone |
| 2021-06-14 | blog.syncinc.so | gone |
| 2021-12-16 | stixify.com | still up |
| 2021-06-28 | ceramic.network | unverified |
| 2021-11-15 | selectstar.com | still up |
| 2021-04-15 | makeschool.com | gone |
| 2021-03-04 | grid.glideapps.com | still up |
| 2021-04-25 | chartello.com | moved |
| 2021-08-29 | static.wixstatic.com | unverified |
| 2021-04-28 | spine.dev | still up |
| 2021-09-23 | pganalyze.com | still up |
| 2021-04-05 | fbleak.info | gone |
| 2021-07-14 | all.vision | unverified |
| 2021-03-21 | growthhunt.co | gone |
| 2021-09-26 | jobsinhealthtech.com | gone |
| 2021-01-29 | demo.pyroscope.io | gone~39mo |
| 2021-06-07 | docs.pdap.io | still up |
| 2021-07-14 | avrio.com | moved |
| 2021-12-17 | engula.io | gone |
| 2021-01-09 | nounparse.com | gone~15mo |
| 2021-02-24 | prophecy.io | moved |
| 2021-01-19 | opendesign.avocode.com | still up |
| 2021-09-23 | giga.cat | unverified |
| 2021-12-13 | sqlnotebook.com | still up |
| 2021-12-13 | fabform.io | still up |
| 2021-02-02 | rugpullindex.com | still up |
| 2021-10-13 | dashboard.blindnet.io | unverified |
| 2021-01-08 | growthhunt.carrd.co | 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.