You asked about DeFi
23 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 |
|---|---|---|
| 2022-10-10 | modulo.app | still up |
| 2022-02-13 | pomoplanner.app | still up |
| 2022-03-03 | amazon.com | still up |
| 2023-04-06 | symops.com | still up |
| 2017-06-01 | YCZendar We make high definition radar allowing self-driving cars to see in… · zendar.io | still up |
| 2014-06-01 | Hiro Systems build developer tools for Bitcoin L1 and the Stacks L2 · hiro.so | still up |
| 2019-06-01 | YCRainbow Open-source, design centric software for interacting with blockchains · rainbow.me | still up |
| 2023-02-05 | artimator.io | still up |
| 2019-01-01 | YCGlobe coinbase for derivatives · globe.exchange | still up |
| 2022-12-21 | openaedmap.org | still up |
| 2022-01-01 | YCCypher Crypto Neo-Bank (WhatsApp moment for bank accounts) · cypherhq.io | still up |
| 2022-01-01 | YCApollo Payments & Loyalty Infrastructure · apollofirst.xyz | still up |
| 2012-01-01 | Building Mission Critical Software Defined Radio products. · pervices.com | still up |
| 2021-01-01 | YCFlux Cross border Payments infrastructure for internet businesses and… · iflux.app | still up |
| 2023-11-29 | definite.app | still up |
| 2023-10-22 | thmdex.org | still up |
| 2022-06-01 | Creating genre-defining multiplayer VR games. · ruffnauts.com | still up |
| 2022-06-01 | Building the definitive all-in-one on-device AI productivity tool · anythingllm.com | still up |
| 2026-06-01 | YCDefinite Build everyday back-office agents on one live model of your books · usedefinite.com | still up |
| 2026-06-01 | YCMosaic Defining the frontier of multiplayer AI. · mosaic.inc | still up |
| 2022-06-01 | YCEthosX The protocol for derivatives on blockchains · ethosx.finance | still up |
| 2023-01-01 | DeFi for Everyone · rainmaker.nyc | still up |
| 2022-06-01 | YCKeylika Redefining the Standard of Care for Iron Deficiency Anemia · keylika.com | 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.