You asked about Infrastructure
41 people built something like it. 4 are gone.
That is 11% of the ones whose fate we could settle, against 23% across the whole register. 5 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2021-01-01 | YCEncord The data layer for physical AI · encord.com | still up |
| 2021-01-01 | Tools & infra to build and scale high-quality blockchain applications. · quicknode.com | still up |
| 2021-01-01 | YCR2 Embedded lending infrastructure · r2.co | acquired |
| 2021-06-01 | YCRootly AI-native on-call and incident response carefully crafted to help… · rootly.com | still up |
| 2021-06-01 | YCTavus Building the human layer of AI · tavus.io | still up |
| 2021-06-01 | YCPylon Infrastructure management software for water & electricity companies · pylonump.com | still up |
| 2021-01-01 | YCEnode Energy Orchestration Platform · enode.com | still up |
| 2021-01-01 | YCLendflow Embedded lending infrastructure for software companies · lendflow.com | still up |
| 2021-01-01 | YCDyte Real-time audio & video SDKs, ready to launch 🚀 · dyte.io | acquired |
| 2021-06-01 | YCHitPay Full-stack payments infrastructure for growing APAC businesses · hitpayapp.com | still up |
| 2021-06-01 | YCNash Nash is the digital logistics infrastructure for commerce · usenash.com | still up |
| 2021-01-01 | YCSigNoz Open source alternative to DataDog · signoz.io | still up |
| 2021-06-01 | YCFormance Open Source Infrastructure for the Financial Internet · formance.com | still up |
| 2021-01-01 | YCauthzed Authorization Infrastructure securing AI at OpenAI, Zoom, & more · authzed.com | still up |
| 2021-06-01 | YCMach9 AI CAD Software for Civil Engineering · mach9.ai | still up |
| 2021-01-01 | YCSpruceID SpruceID lets users control their data across the web. · spruceid.com | still up |
| 2021-06-01 | Subscription infrastructure & paywall experimentation for mobile apps · superwall.com | still up |
| 2021-01-01 | YCOpenCode The open source AI coding agent · opencode.ai | still up |
| 2021-06-01 | The Work Number for LatAm · burodeingresos.com | still up |
| 2021-06-01 | YCScispot The Best Data Infrastructure for Biotechs · scispot.io | still up |
| 2021-01-01 | YCStriga Compliant Crypto and Banking Infrastructure · striga.com | acquired |
| 2021-01-01 | YCSvix Enterprise ready webhooks service, open-source and in the cloud · svix.com | still up |
| 2021-01-01 | YCHUBUC Global Card Issuing and Payment Processing Engine · hubuc.com | still up |
| 2021-01-01 | YCMystic Low latency API to run and deploy ML models · mystic.ai | still up |
| 2021-06-01 | YCDots 💸 Developer friendly drop in payouts infrastructure · usedots.com | still up |
| 2021-06-01 | YCPipekit Pipekit scales data & CI pipelines for enterprises · pipekit.io | still up |
| 2021-01-01 | YCFlux Cross border Payments infrastructure for internet businesses and… · iflux.app | still up |
| 2021-06-01 | YCSitenna Compound B2B SaaS for modern infrastructure to deploy and manage sites · sitenna.com | still up |
| 2021-01-01 | YCArpio Recover from any outage in 10 minutes or less. · arpio.io | still up |
| 2021-06-01 | The complete production quality platform. AI-powered E2E testing,… · artillery.io | still up |
| 2021-06-01 | YCSatsuma Reliable blockchain indexing & querying for web3 engineering teams. · satsuma.xyz | acquired |
| 2021-06-01 | YCCumbuca Bare-metal access to Brazil's Open Finance and Pix systems · cumbuca.com | still up |
| 2021-01-01 | YCTrue3D Building the next generation of visual media · true3d.com | still up |
| 2021-06-01 | The medical record & infrastructure stack for digital health companies · akutehealth.com | still up |
| 2021-06-01 | YCWarrant Authorization and access control as a service. · warrant.dev | acquired |
| 2021-01-01 | YCCamp A Nouns DAO governance client · nouns.camp | still up |
| 2021-01-01 | YCNimbus Nimbus reduces Datadog costs by more than 60% without Manual Effort · nimbus.dev | gone |
| 2021-01-01 | The solution for fine-grained access control in web3 · slashauth.com | gone |
| 2021-01-01 | YCGalaxy launchpointhq.com | gone |
| 2021-06-01 | Analytics for builders. Record and query billions of datapoints with… · scratchdata.com | gone |
| 2021-01-01 | YCOllama Get up and running with large language models. · ollama.com | still up |
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.