You asked about Search
14 people built something like it. 2 are gone.
That is 14% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2023-06-01 | YCOutset AI-powered user interviews · outset.ai | still up |
| 2023-06-01 | YCParadeDB Unify application data, vectors, and full-text search in one Postgres · paradedb.com | still up |
| 2023-06-01 | YCSID AI research lab for retrieval · sid.ai | still up |
| 2023-06-01 | Search engine for trustworthy medical information. · medisearch.io | still up |
| 2023-06-01 | The publishing layer for the agentic internet · structuredlabs.com | gone |
| 2023-01-01 | Empowering every doctor and every patient to participate in research · novel.care | still up |
| 2023-01-01 | YCFactIQ Investment research data for AI agents · factiq.com | still up |
| 2023-06-01 | AI Overview Search, as a Service · branch-ai.com | gone |
| 2023-01-01 | YCVersive AI-first user research platform · getversive.com | still up |
| 2023-06-01 | YCTalc Event extraction for Medical Researchers · talc.ai | still up |
| 2023-01-01 | YCEpsilon AI Search Engine for Academic Research · epsilon-ai.com | still up |
| 2023-06-01 | YCWebhound Long-horizon research agents · webhound.ai | still up |
| 2023-01-01 | The smart way to research stocks. · dataglade.com | still up |
| 2023-06-01 | YCRoame Flight search engine using credit card points and miles · roame.travel | still up |
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.