You asked about Hard Tech
261 people built something like it. 261 are gone.
That is 100% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2016-06-01 | YCSeerslab We are providing AR technologies and contents to app developers · argear.io | gone |
| 2019-06-01 | YCLumineye X-ray Vision for First Responders · lumineye.com | gone |
| 2016-06-01 | Testing & treatment at home, in minutes, for chronic & acute disease · cliphealth.com | gone |
| 2019-06-01 | YCZergo We make a urine test that helps women get pregnant. · zergo.com | gone |
| 2018-06-01 | From screen recordings to desktop automations using program synthesis · warpdrive.co | gone |
| 2021-06-01 | YCJupe Just add land · jupe.com | gone |
| 2012-06-01 | Eve is our way of bringing the power of computation to everyone, not… · kodowa.com | gone |
| 2020-01-01 | YCArdis AI Transform your text data into a searchable knowledge graph · ardis.ai | gone |
| 2017-01-01 | YCLitHit Smart Target for Shooting Sports · lithit.com | gone |
| 2016-01-01 | Modernizing home health care agencies with software, hardware, and… · anchorhealth.com | gone |
| 2016-06-01 | Nanoparticle tracers for reservoir characterization during hydraulic… · gtracktechnologies.com | gone |
| 2024-06-01 | Software and hardware to run neural networks faster and cheaper · deepsilicon.net | gone |
| 2016-06-01 | Airo is an AI wearable to track mental health. · airohealth.com | gone |
| 2020-06-01 | Accelerating protein engineering. · trident.bio | gone |
| 2016-01-01 | YCSilver Low cost consumer device for toxin detection. · scansilver.com | gone |
| 2021-06-01 | Technologies for scaling up cultured/clean meat production · micromeat.com | gone |
| 2019-01-01 | The everything store for restaurants in LATAM. · frubana.com | gone |
| 2021-01-01 | Mobile Energy Storage Technology · moxionpower.com | gone |
| 2018-06-01 | YCKobo360 Africa's leading supply chain technology platform. · kobo360.com | gone |
| 2012-01-01 | YCLendUp LendUp is a socially responsible company on a mission to redefine… · lendup.com | gone |
| 2018-01-01 | YCAtrium Modern law firm for startups powered by proprietary technology · atrium.co | gone |
| 2022-01-01 | We make it easier for real estate to sell properties and mortgages. · vecindario.com | gone |
| 2016-01-01 | To make food a renewable resource, for everyone · inevitabletech.com | gone |
| 2016-01-01 | Tech enabled and fully integrated PAN India agri produce supply chain · kisannetwork.com | gone |
| 2022-01-01 | YCSeis Banking 100% in Spanish for the 44 million US Spanish speakers · seis.com | gone |
| 2021-06-01 | Home electrification at $0 upfront cost · solarmente.es | gone |
| 2020-01-01 | YCHelpNow India's most reliable Ambulance service. (uber for ambulances) · gethelpnow.in | gone |
| 2016-06-01 | YCXberts Xberts.com is a community-based marketplace for global hardware… · xberts.com | gone |
| 2016-01-01 | YCCover The mobile-first insurance platform that makes insurance easy. · cover.com | gone |
| 2022-01-01 | YCCastia Built Rewards for Latam. Pay Rent and get benefits. · castia.com | gone |
| 2019-06-01 | Autonomous homebuilding factory for the $1.7 trillion housing crisis. · rentthebackyard.com | gone |
| 2021-01-01 | The fastest and easiest way to make home upgrades · homebreeze.ai | gone |
| 2021-01-01 | Plaid for Southeast Asia · finantier.co | gone |
| 2022-01-01 | On demand provider of meat to households and food businesses · sendme.ng | gone |
| 2015-01-01 | YCPigeonly The affordable way to search, find & communicate with an incarcerated… · pigeonly.com | gone |
| 2021-06-01 | End-to-end commercial real estate transaction platform · propreturns.com | gone |
| 2021-06-01 | YCTAG TAG is the First Digital Bank (Chime/Revolut/N26) for Pakistan · tagme.pk | gone |
| 2021-01-01 | Buy and grow profitable e-commerce companies selling on Amazon and DTC · moonshotbrands.com | gone |
| 2019-01-01 | The Rocket Network: Sustainable & On-Demand Delivery Anywhere in Space · spaceryde.com | gone |
| 2015-06-01 | ROSS is an AI-powered legal research platform that can read and… · rossintelligence.com | gone |
| 2023-01-01 | YCPeeba Risk-free wholesale for retailers across Southeast Asia · peeba.com | gone |
| 2017-01-01 | YCPulse Electronic Medical Records for India · getpulse.care | gone |
| 2020-06-01 | YCAtmos The entire homebuilding process, all online · buildatmos.com | gone |
| 2018-01-01 | Engineering next-generation, brain-penetrant cancer therapies. · reverielabs.com | gone |
| 2016-06-01 | Bringing 3rd generation, nanopore sequencing to healthcare to solve… · shieldbio.com | gone |
| 2016-01-01 | AlphaFlow is a technology-driven investment manager. · alphaflow.com | gone |
| 2016-01-01 | YCUnima Fast and low-cost diagnostics for real time disease surveillance · unimadx.com | gone |
| 2022-01-01 | YCFello Grow money and win $1000 every week by saving and playing games · fello.in | gone |
| 2019-06-01 | YCValiu USD mobile banking for LatAm's businesses and people · valiu.com | gone |
| 2021-01-01 | Purchasing Software | Procure-to-Pay SaaS · controlhub.com | gone |
| 2018-01-01 | YCOvipost Automated insect farming · ovipost.com | gone |
| 2020-01-01 | YCValienta Helping Dropshippers in Colombia run the business and increase sales · valienta.com | gone |
| 2020-01-01 | YCRoboTire Robotire is automating vehicle maintenance for today and future… · robotire.com | gone |
| 2021-06-01 | YCAkudo India's first learning-focused neobank for teenagers · akudo.in | gone |
| 2016-01-01 | Funding platform for global insurance, starting with crop insurance… · worldcovr.com | gone |
| 2021-01-01 | YCUnfurl A virtual food hall that delivers · unfurlcuisine.com | gone |
| 2021-06-01 | YCMine The AI personal finance company. · usemine.com | gone |
| 2021-01-01 | The payments solution for small scale construction. · go.build | gone |
| 2017-06-01 | Social Construct designs and assembles large apartment buildings
… · socialconstructco.com | gone |
| 2018-01-01 | Next-gen blood testing to provide 1000x more data to pharma companies · correliabio.com | gone |
How this compares
Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.
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.