You asked about Gene Therapy
193 people built something like it. 43 are gone.
That is 24% of the ones whose fate we could settle, against 23% across the whole register. 15 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-01-01 | We teach your immune system to attack and cure cancer · modularit.bio | still up |
| 2023-10-10 | eliot.blog | still up |
| 2023-03-28 | regex.ai | still up |
| 2023-02-21 | phind.com | unverified |
| 2023-04-26 | renewables-map.robinhawkes.com | still up |
| 2023-03-22 | pyvibe.com | still up |
| 2023-02-08 | stackoverflow.gg | unverified |
| 2023-04-06 | hn-ideas.tjcx.me | still up |
| 2023-08-19 | avatartion.com | still up |
| 2023-03-13 | web0.cc | unverified |
| 2023-09-23 | csurgay.com | still up |
| 2023-04-12 | beamanalytics.io | unverified |
| 2023-08-06 | archsense.dev | still up |
| 2023-10-03 | jsongenerator.io | still up |
| 2023-10-11 | lucidbox.net | unverified |
| 2023-02-28 | tabular.email | still up |
| 2023-12-09 | useminimal.com | still up |
| 2023-06-27 | flux.ai | still up |
| 2023-05-12 | logicloop.com | gone |
| 2023-08-23 | gentrace.ai | gone |
| 2023-04-16 | typeapi.org | still up |
| 2023-10-30 | logopictureai.com | unverified |
| 2023-08-13 | notyet.news | gone |
| 2023-05-16 | pedalpc.com | still up |
| 2023-08-17 | textify.storia.ai | gone |
| 2023-11-23 | mycyclopedia.co | gone |
| 2023-06-01 | YCVetRec AI Scribe for veterinarians. Saving time and improving patient care. · vetrec.io | still up |
| 2023-03-11 | meme.koll.ai | still up |
| 2023-12-01 | scastiel.dev | still up |
| 2023-09-22 | summarycat.com | unverified |
| 2023-01-01 | YCSalient AI Servicing for Auto Lenders · trysalient.com | still up |
| 2023-10-17 | hacker-news.sideko.dev | still up |
| 2023-11-13 | twogether.ai | moved |
| 2023-05-16 | xmorphic.dev | still up |
| 2023-01-01 | YCPlayAI Our mission is to make Voice AI accessible and useful to all. · play.ai | acquired |
| 2023-06-30 | tability.io | still up |
| 2023-01-01 | YCTruewind AI-Powered Accounting · truewind.ai | still up |
| 2023-06-01 | AI Operating System for Private Market Investors · vectorshift.ai | still up |
| 2023-11-29 | art.aiphotoshoot.com | still up |
| 2023-01-31 | ailef.tech | still up |
| 2023-03-08 | forethought.ai | still up |
| 2023-02-05 | artimator.io | still up |
| 2023-07-13 | resumine.io | gone |
| 2023-08-01 | ringerhq.com | still up |
| 2023-01-01 | YCClueso Create beautiful videos & docs for any product or process in minutes · clueso.io | still up |
| 2023-02-13 | designhat.ai | gone |
| 2023-07-17 | hg.sr.ht | still up |
| 2023-11-29 | altplot.com | still up |
| 2023-06-01 | YCkapa.ai The fastest way to build AI assistants on technical content · kapa.ai | still up |
| 2023-01-01 | YCVector Advertising for the new internet · vector.co | still up |
| 2023-01-01 | YCFloworks Hire the best AI Sales employees | AI SDR | AI RevOps | AI EA · floworks.ai | still up |
| 2023-08-31 | git.anna.lgbt | moved |
| 2023-01-01 | YCLangfuse Open source LLM engineering platform · langfuse.com | acquired |
| 2023-08-02 | grammar.intrinsiclabs.ai | still up |
| 2023-06-01 | YCFlint Personalized learning built for schools · flintk12.com | still up |
| 2023-03-11 | careered.ai | still up |
| 2023-06-01 | YCAccend AI agents for commercial underwriting at banks and fintechs · withaccend.com | still up |
| 2023-01-29 | dystr.com | still up |
| 2023-09-09 | talebotai.com | gone |
| 2023-04-08 | chatgpt-prompt-apps.com | unverified |
How this compares
Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.
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.