You asked about Crypto / Web3
24 people built something like it. 24 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 | YCValiu USD mobile banking for LatAm's businesses and people · valiu.com | gone |
| 2022-06-01 | YCWeltio First LatAm W3 WealthTech for AutoInvesting in securities & crypto · weltio.com | gone |
| 2019-06-01 | YCMultis Accounting & Treasury Management Software for Web3 Teams · multis.com | gone |
| 2019-06-01 | YCPath Financial advisors for Gen-Z · path.me | gone |
| 2018-01-01 | YCMeson Meson is a stablecoin swap protocol among blockchains and Layer 2s · meson.fi | gone |
| 2021-06-01 | YCAlgofi Building the new financial system · algofi.org | gone |
| 2021-06-01 | YCHedgehog Cryptocurrency Robo-adviser. Buy. Balance. Relax. · hedgehog.app | gone |
| 2021-01-01 | Maker of consumer crypto apps: Launchcaster, Frameboard, Maindrop · launchcaster.xyz | gone |
| 2020-06-01 | YCSonar Minecraft meets Discord · sonar.app | gone |
| 2022-01-01 | YCBifrost Wills and Estate Management for Crypto · hapi.finance | gone |
| 2022-06-01 | Decentralized, anonymous, and accountable identity on Web3. · notebooklabs.xyz | gone |
| 2022-01-01 | YCCashmere Crypto wallet for web3 startups · cashmere.finance | gone |
| 2021-01-01 | The solution for fine-grained access control in web3 · slashauth.com | gone |
| 2022-01-01 | YCBotin Investment super app for Latin America · botin.app | gone |
| 2018-01-01 | YCHexel Create a cryptocurrency for your community. · onhexel.com | gone |
| 2020-01-01 | The super simple stablecoin wallet with free transactions · peg.money | gone |
| 2022-06-01 | YCPayfura Global payment gateway to buy/sell crypto · payfura.com | gone |
| 2018-01-01 | YCBen The easiest way to learn about, buy, and store cryptocurrency. · ben.co | gone |
| 2014-06-01 | YCTinker Digital Currency Market Making · tinkercorp.com | gone |
| 2021-06-01 | YCCanopi API to measure and eliminate carbon emissions · canopi.cash | gone |
| 2018-01-01 | YCSecured Tools for Sneaker, NFT & web3 investors · secured.community | gone |
| 2016-06-01 | Abundance Labs incubates and builds alternative currency marketplace… · abundancelabs.io | gone |
| 2016-06-01 | Network for decentralized threshold cryptography and end-to-end… · threshold.network | gone |
| 2022-01-01 | The NFT exchange for traders · nftscoring.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.