You asked about IoT Security
19 people built something like it. 6 are gone.
That is 32% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2021-11-29 | jvsg.com | still up |
| 2022-06-15 | exaluminal.com | still up |
| 2022-03-02 | argos-security.io | still up |
| 2021-02-13 | ai-cam.app | moved |
| 2021-12-14 | impervious.com | still up |
| 2023-05-05 | dys2p.com | still up |
| 2023-10-18 | kerkour.com | still up |
| 2023-01-17 | caido.io | still up |
| 2022-08-12 | merliot.org | gone |
| 2023-02-14 | openapi.security | gone |
| 2023-11-07 | trustypkg.dev | gone |
| 2021-09-12 | mf327.com | moved |
| 2023-11-14 | zerotrustassess.com | still up |
| 2021-01-14 | control.verygoodsecurity.com | gone~4mo |
| 2021-07-26 | bluespace.tech | unverified |
| 2026-08-27 | harden.run | unverified |
| 2021-02-09 | spatcher.io | gone~17mo |
| 2022-06-30 | graphql.security | still up |
| 2023-09-07 | complimony.com | moved |
| 2023-05-07 | postdata.cloud | still up |
| 2021-02-07 | academy.kerkour.com | still up |
| 2026-08-20 | sentrint.com | unverified |
| 2021-07-13 | swagitda.com | unverified |
| 2021-03-10 | aspsecuritykit.net | still up |
| 2026-08-25 | learnfrom.co | unverified |
| 2021-12-09 | manasecurity.com | unverified |
| 2023-08-14 | beyondmachines.net | still up |
| 2023-10-10 | compliance.sh | unverified |
| 2026-08-27 | feistyduck.com | unverified |
| 2021-01-21 | laravel-enlightn.com | gone~58mo |
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.