You asked about Social Network
254 people built something like it. 100 are gone.
That is 48% of the ones whose fate we could settle, against 23% across the whole register. 47 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2007-01-01 | YCTwitch A global community creating the future of live entertainment. · twitch.com | acquired |
| 2005-06-01 | YCReddit The frontpage of the internet. · reddit.com | acquired |
| 2017-06-01 | YCMuzz Where Single Muslims meet · muzz.com | still up |
| 2019-06-01 | YCLineLeap LineLeap gets customers to the fun, faster. · lineleap.com | still up |
| 2012-06-01 | YC9gag Make the world happier. · 9gag.com | still up |
| 2017-01-01 | YCMednet Mednet helps doctors answer their toughest clinical questions —… · themednet.org | still up |
| 2018-01-01 | YCZyper Recreating social networks for brands. · zyper.com | acquired |
| 2024-01-01 | The integration layer for live events infrastructure · crowdvolt.com | still up |
| 2015-01-01 | YCSmyte Smyte stops bad actors on social networks and marketplaces. · smyte.com | acquired |
| 2017-06-01 | YCFam Video calling social network to talk with friends and make new friends · famapp.com | gone |
| 2021-06-01 | YCCafé Your Workplace Engagement Hub · at.cafe | still up |
| 2021-01-01 | YourQuote is India's largest writing platform · yourquote.in | gone |
| 2020-06-01 | YCHere Where friends watch, play and hang together in digital rooms · here.fm | gone |
| 2024-01-01 | YCWhip A social feed for interactive AI Creations · whip.run | still up |
| 2019-06-01 | Souffle Club:10x better LinkedIn alternative with profiles >> resumes · souffle.club | gone |
| 2025-09-01 | YCDigipals The future of Social in the age of AI · digipals.app | still up |
| 2012-01-01 | Help families stay in touch · familyleaf.com | acquired |
| 2019-01-01 | YCBasement The social network for your close friends. · basement.social | gone |
| 2025-01-01 | The social network layer for AI apps · a1zap.com | still up |
| 2011-06-01 | YCEveryme The #1 private social network · everyme.com | gone |
| 2006-06-01 | YCJamglue jamglue.com | gone |
| 2024-01-01 | YCDeep24 AI coach for your entire life · deep24.com | still up |
| 2010-06-01 | YCFridge Disposable social networks. · frid.ge | acquired |
| 2020-01-01 | YCGiveAway Community driven marketplace for used things · giveaway.mobi | still up |
| 2012-06-01 | We turn Patients into Researchers. · crohnology.com | gone |
| 2018-01-01 | YCSuper Super is the first and leading Indonesian social commerce platform · superapp.id | still up |
| 2011-06-01 | We’re building the world’s bank payment network. · gocardless.com | acquired |
| 2008-01-01 | Pioneers of mobile social gaming. · mz.com | acquired |
| 2012-06-01 | The best way to launch, manage and measure social impact programs · submittable.com | still up |
| 2014-01-01 | YCSnapdocs digital mortgage closing · snapdocs.com | still up |
| 2015-06-01 | YCTeleport The Infrastructure Identity Company · goteleport.com | still up |
| 2012-01-01 | YCLendUp LendUp is a socially responsible company on a mission to redefine… · lendup.com | gone |
| 2020-06-01 | YCStatiq. India's Largest EV charging network · statiq.in | still up |
| 2008-06-01 | gotreehouse.com | gone |
| 2017-06-01 | Dating & relationship coaching sessions for individuals and couples · relationshiphero.com | still up |
| 2018-06-01 | Our platform enables creators to build experiences, games, and worlds… · pocketworlds.com | still up |
| 2016-01-01 | Tech enabled and fully integrated PAN India agri produce supply chain · kisannetwork.com | gone |
| 2019-06-01 | YCGather Building a better way to meet online. · gather.town | still up |
| 2020-01-01 | YCKosh Creating Microfinance 2.0. · getkosh.com | still up |
| 2022-01-01 | Reselling marketplace for social media entrepreneurs in Pakistan · markaz.app | still up |
| 2016-06-01 | Ready Education is building the mobile OS for higher education. We… · readyeducation.com | still up |
| 2022-01-01 | Bluetooth to Space · hubble.com | still up |
| 2017-01-01 | YCSpeak A superhuman, AI-powered language tutor in your pocket · speak.com | still up |
| 2015-01-01 | YCPigeonly The affordable way to search, find & communicate with an incarcerated… · pigeonly.com | gone |
| 2016-06-01 | YCSeerslab We are providing AR technologies and contents to app developers · argear.io | gone |
| 2017-06-01 | YCUpfort Turnkey security & hassle-free cyber insurance from leading insurers · upfort.com | still up |
| 2019-06-01 | YCBeacons An AI-powered, all-in-one business platform for content creators · beacons.ai | still up |
| 2019-01-01 | The Rocket Network: Sustainable & On-Demand Delivery Anywhere in Space · spaceryde.com | gone |
| 2017-06-01 | YCGuilded Chat for gaming communities · guilded.gg | acquired |
| 2021-06-01 | YCGovly The #1 Market Network for Government Contractors. · govly.com | still up |
| 2020-01-01 | YCTagMango Monetisation tool for the Indian creator economy · tagmango.com | still up |
| 2021-06-01 | YCAppX AppX helps social media creators launch their own mobile apps. · appx.co.in | still up |
| 2009-06-01 | YCBump Bump, Flock, Photoroll (unreleased) => Google Photos · bumptechnologies.com | acquired |
| 2021-06-01 | A national network of microschools bringing school choice to every… · kaipodlearning.com | still up |
| 2021-01-01 | India’s first and only marriage super app · betterhalf.ai | still up |
| 2019-06-01 | YCLokal Local news, information and classifieds for India's small town users · getlokalapp.com | still up |
| 2022-06-01 | YCChariot A payment network connecting nonprofits to the $326B in DAFs · givechariot.com | still up |
| 2023-01-01 | YC222 the AI social facilitator for offline human to human interactions · 222.place | still up |
| 2015-06-01 | Social Infrastructure for Games; Makers of Nakama game server, Satori… · heroiclabs.com | still up |
| 2018-01-01 | YCMojo Mobile app for creating pro-quality social media videos · mojo-app.com | acquired |
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.