You asked about Crypto / Web3
54 people built something like it. 54 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 |
| 2022-01-01 | YCBifrost Wills and Estate Management for Crypto · hapi.finance | gone |
| 2020-06-01 | YCSonar Minecraft meets Discord · sonar.app | gone |
| 2021-01-01 | Maker of consumer crypto apps: Launchcaster, Frameboard, Maindrop · launchcaster.xyz | 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 |
| 2022-01-01 | YCBotin Investment super app for Latin America · botin.app | gone |
| 2021-01-01 | The solution for fine-grained access control in web3 · slashauth.com | gone |
| 2018-01-01 | YCHexel Create a cryptocurrency for your community. · onhexel.com | gone |
| 2018-01-01 | YCBen The easiest way to learn about, buy, and store cryptocurrency. · ben.co | gone |
| 2022-06-01 | YCPayfura Global payment gateway to buy/sell crypto · payfura.com | gone |
| 2020-01-01 | The super simple stablecoin wallet with free transactions · peg.money | 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 |
| 2022-04-28 | onjuno.com | gone |
| 2022-10-21 | launchcaster.xyz | gone |
| 2022-01-02 | tokenaround.com | gone |
| 2022-10-16 | superintern.fun | gone |
| 2022-07-03 | notific.xyz | gone |
| 2022-04-08 | coinflix.xyz | gone |
| 2022-05-03 | kazm.xyz | gone |
| 2022-04-02 | cryptomarry.me | gone |
| 2022-04-22 | supportwithcrypto.com | gone |
| 2022-02-26 | thesilkcollective.xyz | gone |
| 2021-10-06 | peersend.com | gone |
| 2022-11-21 | tribecrafters.io | gone |
| 2021-05-31 | mirotomi.com | gone |
| 2022-01-17 | hodlernews.io | gone |
| 2016-06-01 | Abundance Labs incubates and builds alternative currency marketplace… · abundancelabs.io | gone |
| 2023-04-19 | remanent.gg | gone |
| 2018-01-01 | YCSecured Tools for Sneaker, NFT & web3 investors · secured.community | gone |
| 2016-06-01 | Network for decentralized threshold cryptography and end-to-end… · threshold.network | gone |
| 2021-01-14 | repowcha.com | gone~23mo |
| 2023-06-21 | hedgehog.app | gone |
| 2022-01-01 | The NFT exchange for traders · nftscoring.com | gone |
| 2021-06-21 | mostlycrypto.news | gone |
| 2022-07-08 | triple.xyz | gone |
| 2021-11-15 | supersimpleswap.com | gone |
| 2021-12-07 | app.agentsinu.com | gone |
| 2022-07-28 | popcoin.gg | gone |
| 2023-07-20 | 100.builders | gone |
| 2022-04-06 | beta.squads.xyz | gone |
| 2021-07-07 | grpco.in | gone |
| 2021-12-29 | whirrel.com | gone |
| 2021-04-28 | tradesheet.io | gone |
| 2022-06-11 | app.newagrocoin.com | gone |
| 2022-03-07 | exnge.com | gone |
| 2022-04-25 | thedailyshib.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.