You asked about Networks
19 people built something like it. 5 are gone.
That is 31% of the ones whose fate we could settle, against 23% across the whole register. 3 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2022-03-27 | networksfromscratch.com | gone |
| 2023-11-24 | ip.guide | still up |
| 2023-11-05 | wirehub.org | still up |
| 2014-01-01 | YCSnapdocs digital mortgage closing · snapdocs.com | still up |
| 2021-05-27 | redact.dev | still up |
| 2018-01-01 | YCZyper Recreating social networks for brands. · zyper.com | acquired |
| 2023-12-05 | ampolloreno.com | still up |
| 2025-01-01 | We build networks of AIs to simulate high-value audiences · societies.io | still up |
| 2015-01-01 | YCSmyte Smyte stops bad actors on social networks and marketplaces. · smyte.com | acquired |
| 2023-12-19 | agorasocial.app | unverified |
| 2026-06-01 | The AI-powered operating system for radiology networks · avocasystems.com | still up |
| 2022-01-01 | YCNetmaker Automated WireGuard networks for distributed systems and Kubernetes · netmaker.io | still up |
| 2022-08-30 | adless.net | unverified |
| 2023-05-18 | supernetworks.org | still up |
| 2016-01-01 | YCIndex Mapping the world's professional relationships. · index.io | gone |
| 2026-01-01 | AI operating system for mega-scale satellite networks. · constellation.space | still up |
| 2025-06-01 | YCPangolin Open networking and security for your workforce, AI agents, and infra · pangolin.net | still up |
| 2010-06-01 | YCFridge Disposable social networks. · frid.ge | acquired |
| 2024-06-01 | Software and hardware to run neural networks faster and cheaper · deepsilicon.net | gone |
| 2014-06-01 | YCBeep Cellular networks for IoT. · beepnetworks.com | gone |
| 2015-06-01 | Enterprise Threat Detection: Tuning, Triage, and Analysis by Experts. · traversalnetworks.com | gone |
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.