You asked about Commercial Space Launch
Nobody in the register described anything this way.
| Launched | What it was | Today |
|---|---|---|
| 2018-06-01 | YCMomentus The space infrastructure services company · momentus.space | acquired |
| 2019-01-01 | YCConvex Software for the commercial services industry. · convex.com | acquired |
| 2013-06-01 | YCArcus Payment-as-a-service that helps any business launch payment solutions · arcusfi.com | acquired |
| 2015-01-01 | Paperspace is a cloud platform for building and scaling AI… · paperspace.com | acquired |
| 2021-01-01 | YCDyte Real-time audio & video SDKs, ready to launch 🚀 · dyte.io | acquired |
| 2020-01-01 | Long range, battery electric vertical take-off and landing aircraft. · talyn.com | acquired |
| 2014-06-01 | YCRavti Software to track, manage, and procure HVAC for commercial real… · ravti.com | acquired |
| 2018-06-01 | YChypcloud A tech-enabled commercial mortgage broker. hypcloud allows property… · hypcloud.com | acquired |
| 2024-09-01 | YCGander Automation System for Global Aviation · usegander.com | acquired |
| 2020-01-01 | Build & launch your website in minutes with AI · typedream.com | acquired |
| 2021-01-01 | Building robots to automate commercial concrete construction. · rointech.com | acquired |
| 2015-06-01 | sphere.works | acquired |
| 2020-01-01 | YCSayana Affordable mental self-care for all. Acquired by Headspace Health. · sayana.app | acquired |
| 2017-06-01 | We help commercial insurance brokers structure complicated… · surematics.com | acquired |
| 2011-06-01 | Creativity at Play. Tablet toys. Acquired by Google, 2015. · launchpadtoys.com | acquired |
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.