You asked about Infrastructure
53 people built something like it. 53 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2017-06-01 | Sunfolding builds next generation infrastructure for solar farms. By… · sunfolding.com | gone |
| 2023-09-06 | docs.abbey.io | gone |
| 2022-05-16 | multy.dev | gone |
| 2020-06-01 | YCShuttle Build Backends. Fast. · shuttle.dev | gone |
| 2022-01-01 | YCWingback Wingback provides tools and APIs for SaaS pricing and packaging. · wingback.com | gone |
| 2017-01-01 | Insurance Distribution Infrastructure · zincplatform.com | gone |
| 2021-01-01 | YCMystic Low latency API to run and deploy ML models · mystic.ai | gone |
| 2014-06-01 | A self-healing platform to enrich and fix server alerts automatically · neptune.io | gone |
| 2020-06-01 | Data Quality & Playback Platform · streamdal.com | gone |
| 2019-06-01 | YCNarrator The only platform that can prep data to answer EVERY question you… · narratordata.com | gone |
| 2022-06-01 | No-code data curation for LLM fine-tuning and evaluation. · airtrain.ai | gone |
| 2018-01-01 | YCTipe Open-source, customizable, headless CMS · tipe.io | gone |
| 2022-06-01 | The IAM Policy Copilot · slauth.io | gone |
| 2020-06-01 | YCReploy Instant, shareable staging environments · getreploy.com | gone |
| 2011-06-01 | YCPhoneSys The Phone System for Sales Teams. · pingm.net | gone |
| 2021-01-01 | The solution for fine-grained access control in web3 · slashauth.com | gone |
| 2022-01-01 | Bioinformatics pipelines in the cloud · flowdeploy.com | gone |
| 2019-06-01 | YCFlow Improve your browsing experience by staying organized and intentful · enterflow.app | gone |
| 2020-01-01 | YCArdis AI Transform your text data into a searchable knowledge graph · ardis.ai | gone |
| 2021-01-01 | YCNimbus Nimbus reduces Datadog costs by more than 60% without Manual Effort · nimbus.dev | gone |
| 2022-06-01 | YCGrai Open source version control for metadata · grai.io | gone |
| 2020-06-01 | YCAtomized Enabling teams to deploy without needing a cloud expert · atomizedhq.com | gone |
| 2012-06-01 | YCGoScale Dynamical Scaling Virtual Machines as a Service · goscale.com | gone |
| 2026-01-01 | YCKlaus AI Fast and Safe OpenClaw on the cloud · klausai.com | gone |
| 2023-06-01 | AI Energy Management · trycardinal.ai | gone |
| 2023-01-01 | YCDefer Zero infrastructure background processing platform. · defer.run | gone |
| 2023-01-01 | YCCakework API that adds cloud hosting to any developer platform · cakework.com | gone |
| 2023-01-01 | AI-powered data extraction engine · indexical.dev | gone |
| 2022-06-01 | YCBricksAI Streamlining LLM application management for enterprises · trybricks.ai | gone |
| 2021-01-01 | YCGalaxy launchpointhq.com | gone |
| 2019-06-01 | We help companies comply with privacy laws like GDPR. Many of these… · preclus.io | gone |
| 2015-01-01 | YCNextop Nextop optimizes the path between your app and backend. Client… · nextop.io | gone |
| 2013-06-01 | Instant sandboxed server environments · stackmachine.com | gone |
| 2012-06-01 | Helping developers scale their applications with ease. · paralleluniverse.co | gone |
| 2024-01-01 | YCEngines Setup any repo with one command · engines.dev | gone |
| 2012-01-01 | YCMinefold Simple multiplayer game servers. · minefold.com | gone |
| 2025-09-01 | YCDome A unified API for prediction markets, like Kalshi and Polymarket · domeapi.io | gone |
| 2025-06-01 | YCNuntius Making Models Follow Rules. · nuntius.ai | gone |
| 2025-01-01 | Daily productivity tracker · sublingual.ai | gone |
| 2023-01-01 | The Gen AI evaluation and curation platform · magicflow.ai | gone |
| 2022-06-01 | serverless platform for real-time data · denormalized.io | gone |
| 2019-06-01 | YCPrompt Helping busy professionals understand and maintain their relationships · getprompt.app | gone |
| 2020-01-01 | YCScout Dead simple CI/CD for ML teams · scout.ml | gone |
| 2020-06-01 | We help SaaS companies deploy into their customer's environment. · metamanagement.dev | gone |
| 2024-01-01 | YCCelest The Vercel of Flutter · celest.dev | gone |
| 2021-06-01 | Analytics for builders. Record and query billions of datapoints with… · scratchdata.com | gone |
| 2011-01-01 | .NET Cloud Platform as a Service · appharbor.com | gone |
| 2019-01-01 | Building infrastructure to expand scope and quality of virtual care · brick.health | gone |
| 2012-01-01 | YCBrace Backlift allows front-end only developers to build entire websites… · brace.io | gone |
| 2011-06-01 | YCProxino Javascript proxy. · proxino.com | gone |
| 2012-01-01 | Client-side encryption for your devices and the cloud. · documents.me | gone |
| 2013-01-01 | Logiblock engineers electronics and development tools to dramatically… · logiblock.com | gone |
| 2008-01-01 | YCFathomDB fathomdb.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.