You asked about Next-gen Network Security
Nobody in the register described anything this way.
| Launched | What it was | Today |
|---|---|---|
| 2011-06-01 | Server key management, VPN as a Service, Privacy VPN. Sold to… · cryptoseal.com | acquired |
| 2014-01-01 | YCAxoni Axoni is building the next generation of capital markets technology · axoni.com | acquired |
| 2015-01-01 | Next generation infectious disease test kits · lucirahealth.com | acquired |
| 2015-01-01 | Our vision is to build the next generation of iOS or Android, to… · raventech.com | acquired |
| 2015-01-01 | YCSmyte Smyte stops bad actors on social networks and marketplaces. · smyte.com | acquired |
| 2020-06-01 | Training the next generation of software engineers in Europe 🇪🇺 · strive.school | acquired |
| 2020-01-01 | YCCron Next-generation calendar for professionals and teams · cron.com | acquired |
| 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 |
| 2011-06-01 | We’re building the world’s bank payment network. · gocardless.com | acquired |
| 2013-01-01 | YCHeap Captures user interactions with no code to generate analytics. · heap.io | acquired |
| 2017-06-01 | The genetic testing platform detecting and measuring disease. · billiontoone.com | acquired |
| 2012-01-01 | YCAuthy Authy is a Two-Factor Authentication platform for developers · authy.com | acquired |
| 2018-01-01 | YCSqreen Sqreen is the application security platform for the modern enterprise · sqreen.com | acquired |
| 2011-06-01 | YCGenius Music Intelligence · genius.com | acquired |
| 2015-06-01 | YCBluecrew Bluecrew is a web based staffing agency. · bluecrewjobs.com | acquired |
| 2015-06-01 | Intelligent technical hiring. · triplebyte.com | acquired |
| 2020-06-01 | YCSafeBase Trust Center platform that scales customer security reviews · safebase.io | acquired |
| 2018-06-01 | YCRegology AI Agents for Regulatory Compliance · regology.com | acquired |
| 2022-01-01 | YCOptery Opt out software that removes your private info from the internet · optery.com | acquired |
| 2019-06-01 | YCVendr The AI negotiation agent to help you save money on SaaS. · vendr.com | acquired |
| 2010-06-01 | YCAeroFS Secure Enterprise Collaboration. · aerofs.com | acquired |
| 2023-01-01 | YCPlayAI Our mission is to make Voice AI accessible and useful to all. · play.ai | acquired |
| 2018-01-01 | YCZyper Recreating social networks for brands. · zyper.com | acquired |
| 2022-06-01 | YCPulppo Shopify for Real Estate Agents in LATAM · pulppo.com | acquired |
| 2019-01-01 | YCDoppler Secure secrets. Prevent breaches. Keep teams moving. · doppler.com | acquired |
| 2018-01-01 | YCNaborly A credit bureau for the renting generation. · naborly.com | acquired |
| 2022-06-01 | YCTruva Sell more. Grind less with AI agents. · truva.ai | acquired |
| 2020-01-01 | YCNextmv A DecisionOps platform that accelerates optimization AI teams · nextmv.io | acquired |
| 2014-01-01 | Next Caller creates a positive customer experience through real-time… · nextcaller.com | acquired |
| 2014-01-01 | Operating system for creative agencies · sketchdeck.com | acquired |
| 2023-01-01 | YCLangfuse Open source LLM engineering platform · langfuse.com | acquired |
| 2019-01-01 | A.I. to create stunning fashion images for eCommerce. · alluresystems.com | acquired |
| 2015-01-01 | NexTravel is a centralized travel booking platform that helps… · nextravel.com | acquired |
| 2023-01-01 | YCVersori Agentic integrations & automations for enterprise · versori.com | acquired |
| 2014-06-01 | Data platform for metagenomics and the microbiome. · onecodex.com | acquired |
| 2020-06-01 | Humanloop is the LLM evals platform for enterprises. · humanloop.com | acquired |
| 2025-06-01 | YCMetis Infrastructure to build reliable agents · withmetis.ai | acquired |
| 2020-06-01 | We help ML teams improve their models by improving their datasets · aquariumlearning.com | acquired |
| 2018-06-01 | We build artificial intelligence processors inspired by the brain. · rain-neuromorphics.com | acquired |
| 2017-06-01 | Code review as a service - combining automation with a network of… · pullrequest.com | acquired |
| 2015-01-01 | YCFinal A credit card that drastically reduces payment fraud and gives… · getfinal.com | acquired |
| 2014-01-01 | We're making a smart, front door camera with intercom that lets you… · getkuna.com | acquired |
| 2005-06-01 | clickfacts.com | acquired |
| 2015-06-01 | Shifting the asymmetry of cyber security. · cymmetria.com | acquired |
| 2017-01-01 | YCPeer5 P2P delivery network that enables high quality video streaming · peer5.com | acquired |
| 2017-06-01 | Protecting applications from malicious activity · templarbit.com | acquired |
| 2020-01-01 | DataOps Observability Platform for Snowflake · chaosgenius.io | acquired |
| 2022-01-01 | A modern and more accessible private bank for the new generation · onyxprivate.com | acquired |
| 2021-06-01 | YCTarsal Data pipeline for your security data lake. · tarsal.co | acquired |
| 2015-06-01 | YCFoxpass Making enterprise security practices available for all companies. · foxpass.com | acquired |
| 2022-01-01 | Potent, durable, and redosable non-viral genetic medicines · engagebio.com | acquired |
| 2022-01-01 | YCHOAi AI agent for community management · hoai.com | acquired |
| 2023-01-01 | Know what your LLM is doing — and why it’s failing · traceloop.com | acquired |
| 2020-01-01 | Your team's intelligent start page. · dashworks.ai | acquired |
| 2023-06-01 | Metadata for GenAI workflows · deasylabs.com | acquired |
| 2017-01-01 | Clear Genetics is scaling delivery of Genomic services · cleargenetics.com | acquired |
| 2020-06-01 | YCVectrix Scan your SaaS apps and instantly identify security issues · vectrix.io | acquired |
| 2022-01-01 | Artificially Intelligent Corporations · mutable.ai | acquired |
| 2016-01-01 | Novel long-read DNA sequencing technology · loopgenomics.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.