You asked about AR
9 people built something like it. 4 are gone.
That is 57% of the ones whose fate we could settle, against 23% across the whole register. 2 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2022-01-01 | YCMagna Carta for Web3: token vesting and DeFi investment management. · magna.so | acquired |
| 2019-06-01 | YCMultis Accounting & Treasury Management Software for Web3 Teams · multis.com | gone |
| 2017-06-01 | The easiest way to buy 74k+ crypto tokens with USD · dharma.io | acquired |
| 2018-01-01 | YCSecured Tools for Sneaker, NFT & web3 investors · secured.community | gone |
| 2019-01-01 | YCMudrex India's largest crypto investing paltform · mudrex.com | still up |
| 2026-01-01 | Low-latency execution across crypto, prediction, and tokenized assets · sequencemkts.com | still up |
| 2021-01-01 | Maker of consumer crypto apps: Launchcaster, Frameboard, Maindrop · launchcaster.xyz | gone |
| 2021-06-01 | YCFilta The Face Filter NFT Marketplace · getfilta.com | still up |
| 2022-01-01 | YCCashmere Crypto wallet for web3 startups · cashmere.finance | 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.