You asked about Air Taxis
10 people built something like it. 0 are gone.
That is 0% of the ones whose fate we could settle, against 23% across the whole register. 1 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2023-06-01 | YCHyLight Unmanned airships for inspecting our critical assets · hylight.aero | still up |
| 2023-06-01 | Tech-enabled heat pump contractor that cuts costs by 60% · electricair.io | still up |
| 2023-06-01 | AI Agents For RFP and Questionnaire Response Automation · inventive.ai | still up |
| 2023-06-01 | YCAirgoods The modern distributor for grocers. · airgoods.com | still up |
| 2023-01-01 | YCVendah Vendah is building a Faire-style marketplace for LATAM’s +50M… · vendah.com.br | still up |
| 2023-06-01 | AI Agents for Healthcare RCM · cairhealth.com | still up |
| 2023-01-01 | Emission free hydrogen electric aircraft · stralis.aero | still up |
| 2023-01-01 | AI Co-Pilot for Health Insurers to Authorize Treatment Faster · fairwayhealth.co | acquired |
| 2023-01-01 | YCPair AI Reimagining education with short form video and AI · pairai.com | still up |
| 2023-06-01 | YCRoame Flight search engine using credit card points and miles · roame.travel | 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.