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| Launched | What it was | Today |
|---|---|---|
| 2021-01-01 | YCunSurvey AI-led market research interviews, no scheduling, instant insights. · unsurvey.ai | acquired |
| 2013-06-01 | YCDoorDash Restaurant delivery. · doordash.com | acquired |
| 2009-01-01 | YCAirbnb Book accommodations around the world. · airbnb.com | acquired |
| 2012-06-01 | Marketplace for grocery delivery and pickup · instacart.com | acquired |
| 2010-01-01 | The first all-in-one operating system for marketing · optimizely.com | acquired |
| 2012-01-01 | Digital Analytics Platform · amplitude.com | acquired |
| 2016-06-01 | YCCareRev Seamlessly connecting healthcare facilities and professionals through… · carerev.com | acquired |
| 2007-01-01 | YCWeebly Build a free website that grows with your business. · weebly.com | acquired |
| 2013-01-01 | IMPORTANT: The original YC founders are no longer involved with this… · teespring.com | acquired |
| 2010-06-01 | YCHomejoy platform for home service professionals · homejoy.com | acquired |
| 2011-01-01 | Customer loyalty and payments platform for small businesses. · fivestars.com | acquired |
| 2015-06-01 | PartnerStack is a full stack solution for partnerships. · partnerstack.com | acquired |
| 2014-01-01 | YCAxoni Axoni is building the next generation of capital markets technology · axoni.com | acquired |
| 2014-06-01 | Modern, on-demand lawn care service. Get a quote in two minutes. · lawnlove.com | acquired |
| 2017-01-01 | YCSoomgo Local services marketplace that connects providers with new customers · soomgo.com | acquired |
| 2017-06-01 | YCFeather Furniture rental for consumers and businesses. · livefeather.com | acquired |
| 2011-01-01 | eSignature software for small and mid-market businesses. · hellosign.com | acquired |
| 2008-01-01 | We build communities through massively multiplayer mobile games · athinkingape.com | acquired |
| 2021-06-01 | YCMailmodo No-code email marketing platform to send forms & widgets within emails · mailmodo.com | acquired |
| 2020-06-01 | YCSkio Subscriptions for Shopify · skio.com | acquired |
| 2013-01-01 | VaycayHero is a marketplace of professionally managed vacation… · vaycayhero.com | acquired |
| 2010-01-01 | the best loyalty and retention marketing partner for CMOs. · 500friends.com | acquired |
| 2012-06-01 | YCVirool Virool provides native video advertising experience for the biggest… · virool.com | acquired |
| 2011-01-01 | Order ahead for pickup · crunchbase.com | acquired |
| 2015-01-01 | YCWayUp Marketplace for employers to recruit college students and recent grads · wayup.com | acquired |
| 2015-01-01 | A better way to buy a home · openlistings.com | acquired |
| 2020-01-01 | YCCheckars E-commerce site where you can buy certified used-cars in Latin America · checkars.com | acquired |
| 2017-06-01 | Fat Llama is the first fully insured peer-to-peer rental marketplace.… · fatllama.com | acquired |
| 2017-01-01 | We are Alibaba of Africa. We are building a marketplace for African… · waystocap.com | acquired |
| 2015-01-01 | Software for collaborating with content creators and influencers · popularpays.com | acquired |
| 2018-01-01 | YCZyper Recreating social networks for brands. · zyper.com | acquired |
| 2018-01-01 | YCYouTeam We make it easy for startups to hire engineers. · youteam.io | acquired |
| 2022-01-01 | Unlocking carbon markets for European forest owners · pina.earth | acquired |
| 2014-06-01 | YCTenjin Mobile marketing analytics and infrastructure · tenjin.com | acquired |
| 2017-06-01 | YCbxblue bxblue is a marketplace for people with guaranteed income in Brazil.… · bxblue.com.br | acquired |
| 2022-06-01 | YCTruva Sell more. Grind less with AI agents. · truva.ai | acquired |
| 2018-06-01 | YCKinside Powering the $648b Care Economy · kinside.com | acquired |
| 2011-01-01 | YCEarbits Google AdWords for music. Allowing bands and labels to bid for… · earbits.com | acquired |
| 2016-01-01 | YCPulpix Binge-watching technology for video platforms. · pulpix.com | acquired |
| 2016-01-01 | YCHingeto A B2B marketplace that connects inventory to online stores · hingeto.com | acquired |
| 2017-01-01 | YCBulletin Helping retailers discover and shop the best brands on the planet · bulletin.co | acquired |
| 2012-06-01 | YCOmniVirt OmniVirt is the leading VR Advertising platform for brands and… · omnivirt.com | acquired |
| 2018-06-01 | Virtual Lab Managers for scientists and biotech, research Labs · happilabs.org | acquired |
| 2021-01-01 | Dramatically better search and ads for marketplaces · promoted.ai | acquired |
| 2017-06-01 | YCCarDash Managed marketplace for automotive services. · repairsmith.com | acquired |
| 2015-01-01 | YCSmyte Smyte stops bad actors on social networks and marketplaces. · smyte.com | acquired |
| 2011-01-01 | YCUpverter The future of hardware design. A marketplace for hardware engineering… · upverter.com | acquired |
| 2012-01-01 | YCChute Discover the photos and videos people are taking of your brand or… · getchute.com | acquired |
| 2017-06-01 | Platform for unique products produced on-demand at mass-scale · shopvida.com | acquired |
| 2018-01-01 | YCPulse We're crowdsourced Gartner so IT executives can learn directly from… · pulse.qa | acquired |
| 2012-01-01 | YCExec Exec is a house cleaning service that users can book from their… · iamexec.com | acquired |
| 2006-01-01 | YCWufoo Online form builder. · wufoo.com | acquired |
| 2011-01-01 | YCCustora Custora is a predictive analytics platform for e-commerce marketing… · custora.com | acquired |
| 2011-06-01 | Self-service display advertising for SaaS and online retail. · perfectaudience.com | acquired |
| 2014-01-01 | Machine Learning personalization for dynamic digital properties -… · liftigniter.com | acquired |
| 2014-01-01 | Animated mobile ads. · motionlead.com | acquired |
| 2014-01-01 | Advertising platform tools for marketplace sellers. · boostable.com | acquired |
| 2010-01-01 | Connecting users with engaging video content across the web.… · 140fire.com | acquired |
| 2013-06-01 | YCDatarank Making sense of social data.
(Acquired by SimplyMeasured.) · datarank.com | acquired |
| 2014-06-01 | YCCarlypso Used car marketplace · carlypso.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.