You asked about Market Research
10 people built something like it. 3 are gone.
That is 30% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2021-07-20 | sioyek.info | still up |
| 2021-02-14 | m1chart.com | unverified |
| 2021-04-22 | app.litmaps.co | moved |
| 2021-11-12 | stringmark.com | still up |
| 2021-09-10 | finlo.io | unverified |
| 2021-10-03 | researchai.co | unverified |
| 2021-10-20 | openteams.com | still up |
| 2021-06-10 | language.work | moved |
| 2021-05-23 | glitterly.app | unverified |
| 2021-07-28 | researchfin.ai | unverified |
| 2021-02-12 | terrygodier.com | still up |
| 2021-07-14 | avrio.com | moved |
| 2021-03-04 | quantifynow.app | still up |
| 2021-02-03 | presearch.org | unverified |
| 2021-02-26 | member.chatanalytic.com | gone~13mo |
| 2021-02-26 | wheelscreener.com | still up |
| 2021-05-28 | collabstr.com | unverified |
| 2021-11-13 | prodigee.io | gone |
| 2021-04-06 | ivywrite.io | gone |
| 2021-03-03 | themangojelly.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.