You asked about DeFi
6 people built something like it. 6 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2012-01-01 | YCLendUp LendUp is a socially responsible company on a mission to redefine… · lendup.com | gone |
| 2021-06-01 | YCHedgehog Cryptocurrency Robo-adviser. Buy. Balance. Relax. · hedgehog.app | gone |
| 2022-01-01 | YCCashmere Crypto wallet for web3 startups · cashmere.finance | gone |
| 2022-06-01 | Decentralized, anonymous, and accountable identity on Web3. · notebooklabs.xyz | gone |
| 2015-06-01 | YCjEugene jEugene highlights undefined terms and unused definitions in legal… · jeugene.com | gone |
| 2022-06-01 | YCPayfura Global payment gateway to buy/sell crypto · payfura.com | gone |
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.