You asked about Security Orchestration, Automation and Response (SOAR)
64 people built something like it. 64 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2019-06-01 | YCLunaSec An Open Source dependency security tool that is smarter than the rest · lunasec.io | gone |
| 2019-01-01 | Automating Cyber Security Incident Response Through Artificial… · sublimeblack.com | gone |
| 2022-03-15 | securitypage.fyi | gone |
| 2022-07-25 | ab.bot | gone |
| 2022-08-05 | rocketride.io | gone |
| 2022-03-31 | trustpage.com | gone |
| 2022-04-14 | quicklines.ai | gone |
| 2022-01-31 | candymail.saasbase.dev | gone |
| 2022-11-18 | posterity.life | gone |
| 2022-04-08 | ja.cob.land | gone |
| 2021-01-01 | YCAXAR AI Multi-agent orchestration platform · axar.ai | gone |
| 2020-01-01 | AI-enabled automation of diagnostic radiology workflow and reporting. · synapsica.com | gone |
| 2020-01-01 | YCRoboTire Robotire is automating vehicle maintenance for today and future… · robotire.com | gone |
| 2020-01-01 | YCDatree Datree prevents Kubernetes misconfigurations from reaching production · datree.io | gone |
| 2023-02-14 | openapi.security | gone |
| 2023-11-07 | trustypkg.dev | gone |
| 2023-07-25 | prosona.ai | gone |
| 2021-09-12 | mf327.com | gone |
| 2021-01-14 | control.verygoodsecurity.com | gone~4mo |
| 2013-01-01 | YCMedisas Medisas builds workflow & collaboration software for hospitals. · medisas.com | gone |
| 2015-01-01 | YCThinAir Intelligent data security for teams · thinair.com | gone |
| 2016-01-01 | YCCastle Castle manages rental homes using automation and on-demand labor. · entercastle.com | gone |
| 2021-09-28 | aikido.finance | gone |
| 2021-02-09 | spatcher.io | gone~17mo |
| 2022-06-01 | The Unified API for Business Financial Data · integrationlabs.co | gone |
| 2021-06-01 | Never code alone. · squire.ai | gone |
| 2018-06-01 | From screen recordings to desktop automations using program synthesis · warpdrive.co | gone |
| 2023-05-13 | simplotask.com | gone |
| 2023-06-09 | pluto.fi | gone |
| 2023-08-28 | promptportals.com | gone |
| 2019-01-01 | AI driven professional engineering firm · traverse.ai | gone |
| 2017-06-01 | YCMystro Mystro is an app that makes rideshare drivers up to 30% more money by… · mystrodriver.com | gone |
| 2021-01-27 | autotask.site | gone |
| 2021-01-21 | laravel-enlightn.com | gone~58mo |
| 2021-06-01 | YCProtego We help companies recover lost revenue from chargebacks · protegosolutions.io | gone |
| 2024-01-01 | YCTesseral The open source platform for managing identity in business software · tesseral.com | gone |
| 2020-01-01 | AI for security cameras · visualone.tech | gone |
| 2022-01-01 | YCFinnt AI Agents for CFO and Finance teams · finnt.com | gone |
| 2022-06-01 | The IAM Policy Copilot · slauth.io | gone |
| 2025-01-01 | YCAltrina The SOP Automation Platform · altrina.com | gone |
| 2021-01-01 | The solution for fine-grained access control in web3 · slashauth.com | gone |
| 2019-06-01 | Turn any website into an API · dashblock.com | gone |
| 2014-06-01 | Security Guard Company Marketplace · bannerman.com | gone |
| 2023-01-01 | AI-powered customer support automation for fast-growing companies · opensight.ai | gone |
| 2023-06-01 | YCSidenote Meeting follow-up, automated · sidenote.ai | gone |
| 2021-01-01 | YCPlatypus The Distributed Data Operating System · getplatypus.com | gone |
| 2018-01-01 | YCEnvKey End-to-end encrypted configuration and secrets management · envkey.com | gone |
| 2017-01-01 | Marketing automation platform optimized for mobile and web. · marketfox.io | gone |
| 2018-01-01 | YCOSIMple Software for inspectors to automate their paper workflow. · osimple.co | gone |
| 2022-06-01 | AI powered web & mobile automation · dev-tools.ai | gone |
| 2023-01-01 | YCBlyss End-to-end encrypted AI. · blyss.dev | gone |
| 2024-01-01 | Give Salesforce the AI upgrade it deserves · crmcopilot.co | gone |
| 2024-01-01 | YCAedilic Open-Source AI-generated image/deepfake detection · nonescape.com | gone |
| 2018-06-01 | YCFederacy Penetration testing and bug bounty platform. · federacy.com | gone |
| 2016-01-01 | Security patch notifications for servers. Build it, deploy it, and… · patchworksecurity.com | gone |
| 2016-06-01 | Metapacket is the first selective web gateway that stops malware by… · metapacket.com | gone |
| 2016-06-01 | On average each Ambulance run is two hours long, 40 minutes is spent… · rigplenish.com | gone |
| 2025-09-01 | YCCoasts Localhost service isolation and orchestration for git worktrees · coasts.dev | gone |
| 2022-06-01 | Open-source customer engagement & messaging automation · dittofeed.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.