You asked about Search
14 people built something like it. 14 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2015-01-01 | YCPigeonly The affordable way to search, find & communicate with an incarcerated… · pigeonly.com | gone |
| 2015-06-01 | ROSS is an AI-powered legal research platform that can read and… · rossintelligence.com | gone |
| 2023-06-01 | The publishing layer for the agentic internet · structuredlabs.com | gone |
| 2022-06-01 | YCPhind AI search engine · phind.com | gone |
| 2020-01-01 | YCArdis AI Transform your text data into a searchable knowledge graph · ardis.ai | gone |
| 2018-06-01 | A hub for all your user research. · userhero.io | gone |
| 2023-06-01 | AI Overview Search, as a Service · branch-ai.com | gone |
| 2012-01-01 | YCCarsabi Carsabi is the search engine for used cars · carsabi.com | gone |
| 2024-01-01 | YCGlimmer AI search for massive PDFs · withglimmer.com | gone |
| 2012-06-01 | We turn Patients into Researchers. · crohnology.com | gone |
| 2016-06-01 | YCMindori Mindori builds white-label voice search for e-commerce apps. · mindori.com | gone |
| 2024-01-01 | YCLumona AI-enabled search engine featuring insights from social media. · lumona.ai | gone |
| 2012-01-01 | YCZipio Deal search service · dealupa.com | gone |
| 2006-06-01 | Online polls. · pollground.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.