You asked about Aviation and Space
23 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.
| Launched | What it was | Today |
|---|---|---|
| 2022-12-20 | obsidian.md | still up |
| 2023-08-19 | carloslagoa.com | still up |
| 2023-05-21 | badgers.space | still up |
| 2022-11-19 | meat.io | still up |
| 2023-07-09 | samueltate.com | still up |
| 2022-03-10 | prepform.com | still up |
| 2023-11-07 | play.spacelancers.com | still up |
| 2023-11-28 | spaceflight-news.jerrynsh.com | still up |
| 2022-11-29 | blog.spacehey.com | still up |
| 2023-02-04 | blog.jatan.space | still up |
| 2023-12-30 | inko.cat | still up |
| 2023-07-10 | trythrow.com | still up |
| 2022-03-22 | payloadspace.com | still up |
| 2023-07-15 | wheybags.com | still up |
| 2022-04-18 | studius.ai | still up |
| 2021-09-14 | peterlavigne.itch.io | still up |
| 2023-05-26 | tripoffice.com | still up |
| 2022-03-10 | jathu.me | still up |
| 2023-04-24 | spicychess.com | still up |
| 2023-08-27 | scientific.place | still up |
| 2022-07-28 | spatium.earth | still up |
| 2022-12-29 | cfrexplorer.com | still up |
| 2023-11-26 | blog.spacehey.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.