You asked about Note-taking
11 people built something like it. 11 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2019-01-01 | YCBlitzIQ Note taking workspace for B2B sales teams · blitziq.com | gone |
| 2016-06-01 | Bringing 3rd generation, nanopore sequencing to healthcare to solve… · shieldbio.com | gone |
| 2021-06-01 | Meeting agendas, notes, & goals that tie back to your OKRs · hypercontext.com | gone |
| 2017-01-01 | YCArylla We connect products to the internet using an invisible, chip-less tag · arylla.com | gone |
| 2024-06-01 | We automate the person taking orders at drive-thrus with a voice AI · drive-thru.ai | gone |
| 2019-01-01 | YCCapture All your notes, tasks, and files in one super-fast workspace. · capture.so | gone |
| 2023-06-01 | YCSidenote Meeting follow-up, automated · sidenote.ai | gone |
| 2022-01-01 | YCLivedocs A New Kind of Notebook for Data Storytelling · livedocs.com | gone |
| 2022-06-01 | Decentralized, anonymous, and accountable identity on Web3. · notebooklabs.xyz | gone |
| 2015-01-01 | YCOmniref Sticky notes for code.
(We're building a community-powered,… · omniref.com | gone |
| 2016-01-01 | YCSilver Low cost consumer device for toxin detection. · scansilver.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.