You asked about AR
195 people built something like it. 29 are gone.
That is 16% of the ones whose fate we could settle, against 23% across the whole register. 12 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-09-07 | hackyournews.com | still up |
| 2023-08-02 | prettypolly.app | moved |
| 2023-03-28 | regex.ai | still up |
| 2023-02-21 | phind.com | unverified |
| 2023-02-09 | podtext.ai | still up |
| 2023-11-08 | bulletpapers.ai | unverified |
| 2023-07-31 | learnlingo.dev | still up |
| 2023-04-12 | librarian-ai.com | gone |
| 2023-01-27 | eightify.app | unverified |
| 2023-08-11 | cambioml.com | still up |
| 2023-07-03 | kadoa.com | still up |
| 2023-05-17 | getpinbot.com | still up |
| 2023-06-14 | app.scribbler.so | gone |
| 2023-06-27 | flux.ai | still up |
| 2023-01-01 | YCWarp AI-native Employee Management Platform for High-Growth Companies · warp.co | still up |
| 2023-06-01 | End-to-end content, learning, & deal intelligence for B2B sales teams · letter.ai | still up |
| 2023-03-22 | hacker-jobs.com | still up |
| 2023-11-11 | gptroad.com | unverified |
| 2023-12-22 | zaranova.xyz | still up |
| 2023-06-23 | editor.factiverse.ai | still up |
| 2023-06-01 | YCLangdock The all-in-one AI platform for companies. · langdock.com | still up |
| 2023-05-06 | rerenderai.com | unverified |
| 2023-06-01 | YCVetRec AI Scribe for veterinarians. Saving time and improving patient care. · vetrec.io | still up |
| 2023-01-01 | YCPirros AI Platform for Architects and Engineers · pirros.com | still up |
| 2023-06-01 | B2B debt collection powered by AI agents · agentcollect.com | still up |
| 2023-01-01 | AI-based full stack observability platform · middleware.io | still up |
| 2023-01-01 | AI-powered care for seniors with chronic disease · kivohealth.com | still up |
| 2023-06-01 | AI-native operations for the banks · bretton.com | still up |
| 2023-08-13 | brokenbear.com | still up |
| 2023-09-15 | heyastrocyte.com | unverified |
| 2023-06-01 | AI Operating System for Private Market Investors · vectorshift.ai | still up |
| 2023-01-01 | Automate data-driven slide decks and documents with AI · rollstack.com | still up |
| 2023-06-01 | YCOutset AI-powered user interviews · outset.ai | still up |
| 2023-06-01 | YCGiga AI Support Agent for Enterprises. · giga.ai | still up |
| 2023-09-08 | workinai.xyz | unverified |
| 2023-04-21 | meyer.id | moved |
| 2023-01-01 | YCYuma AI The AI Support Agent for Ecommerce · yuma.ai | still up |
| 2023-11-29 | art.aiphotoshoot.com | still up |
| 2023-01-31 | ailef.tech | still up |
| 2023-02-05 | artimator.io | still up |
| 2023-01-01 | YC222 the AI social facilitator for offline human to human interactions · 222.place | still up |
| 2023-06-01 | YCkapa.ai The fastest way to build AI assistants on technical content · kapa.ai | still up |
| 2023-01-01 | YCMetal Metal is an AI-driven operating system for fundraising · metal.so | still up |
| 2023-06-01 | AI enabled marketplace matching trucks with jobs · fleetworks.ai | still up |
| 2023-06-01 | YCElyos AI AI Customer Service Agents for trades and field services · elyos.ai | still up |
| 2023-06-01 | YCReadily AI Compliance Platform for Healthcare Organizations · readily.co | still up |
| 2023-01-01 | AI-Powered Super Mentor for Test Prep · superkalam.com | still up |
| 2023-01-01 | YCloopfour Workflow automation, without AI hallucinations. · loopfour.com | still up |
| 2023-06-01 | YCTiptap The open-source document editor for humans and AI agents. · tiptap.dev | still up |
| 2023-04-06 | koodup.com | still up |
| 2023-05-04 | chatwithfiction.com | still up |
| 2023-07-13 | vectorart.ai | still up |
| 2023-10-11 | opensourceconnections.com | unverified |
| 2023-06-01 | AI Agents For RFP and Questionnaire Response Automation · inventive.ai | still up |
| 2023-01-01 | Automating Healthcare Revenue Cycle Management with AI Workforce · combinehealth.ai | still up |
| 2023-07-19 | getonboard.dev | gone |
| 2023-03-05 | newsletter.param.codes | still up |
| 2023-11-27 | aigaragesale.com | still up |
| 2023-01-01 | The Control Plane for Enterprise Agents · credal.ai | still up |
| 2023-03-15 | outerbounds.com | still up |
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.