You asked about Trust & Safety
32 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 |
|---|---|---|
| 2022-01-01 | YCCinder Infrastructure to protect companies from AI abuse · cinder.ai | still up |
| 2023-10-17 | trustandsafety.fun | still up |
| 2023-06-01 | AI agents for risk, compliance, and safety · safetykit.com | still up |
| 2011-06-01 | YCSift The Leader in Digital Trust & Safety · sift.com | still up |
| 2017-06-01 | The first public safety operating system that eliminates crime. · flocksafety.com | still up |
| 2019-06-01 | Building the safety net of the future · pairteam.com | still up |
| 2022-07-01 | macpaw.com | still up |
| 2022-03-29 | trustmary.com | still up |
| 2018-01-01 | Health insurance for remote teams · safetywing.com | still up |
| 2022-07-07 | askbelynda.com | still up |
| 2018-01-01 | YCAnjuna Anjuna enabled organizations to trust any infrastructure · anjuna.io | still up |
| 2020-06-01 | YCNotabene The Notabene platform is the trust layer for global money movement. · notabene.id | still up |
| 2022-06-01 | YCnsave Trusted $€£ accounts abroad for people from unstable economies. · nsave.com | still up |
| 2023-12-10 | skytable.io | still up |
| 2023-11-14 | zerotrustassess.com | still up |
| 2026-01-01 | Security builds trust. Strengthen both, all on one platform. · parameter.ai | still up |
| 2015-01-01 | YCLabdoor Labdoor is building the trusted online drugstore. · labdoor.com | still up |
| 2016-01-01 | YCCarbic using ultrasonics + ml to analyze fluid behavior at infrastructure… · carbic.com | still up |
| 2025-09-01 | YCSava Building the future of trusts · savahq.com | still up |
| 2025-09-01 | Zero-trust authentication, authorization, and auditing for AI agents · multifactor.com | still up |
| 2023-06-01 | Search engine for trustworthy medical information. · medisearch.io | still up |
| 2022-01-01 | YCTrusty Limitless Real Estate · trustyhomes.com | still up |
| 2018-06-01 | YCDinesafe We crowdsource food safety reports & detect and prevent outbreaks. · dinesafe.org | still up |
| 2022-06-09 | getgwak.com | still up |
| 2023-04-13 | medisearch.io | still up |
| 2021-06-01 | Computer vision that makes the industrial workplace, safer · protex.ai | still up |
| 2024-01-01 | Deploy trustworthy data agent that know your business · upsolve.ai | still up |
| 2023-10-16 | neuronpedia.org | still up |
| 2023-01-01 | YCPier Stripe for Credit - Trusted Credit Compliance Partner · pier-finance.com | still up |
| 2022-01-01 | YCFirezone Easiest way to set up Zero Trust Access for your team · firezone.dev | still up |
| 2024-01-01 | Helping Companies Deploy Email Agents in High Trust Domains · breezlabs.com | still up |
| 2022-06-01 | YCMidplane The safety layer between AI agents and your database · midplane.ai | still up |
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.