You asked about Web Development
Nobody in the register described anything this way.
| Launched | What it was | Today |
|---|---|---|
| 2014-06-01 | YCAptible The No Infrastructure Platform as a Service · aptible.com | acquired |
| 2023-06-01 | YCMocha Build and publish web apps in minutes. No coding required. · getmocha.com | acquired |
| 2023-06-01 | YCTremor The UI toolkit for Dashboards · tremor.so | acquired |
| 2012-06-01 | YCCoinbase Buy, sell, and manage cryptocurrencies. · coinbase.com | acquired |
| 2011-06-01 | YCFirebase Build and grow iOS, Android, and Web apps. · firebase.com | acquired |
| 2007-01-01 | YCWeebly Build a free website that grows with your business. · weebly.com | acquired |
| 2016-01-01 | YCGitPrime Visibility and analytics for software development leaders. · gitprime.com | acquired |
| 2015-06-01 | YCBluecrew Bluecrew is a web based staffing agency. · bluecrewjobs.com | acquired |
| 2014-06-01 | We make bitcoin simple. · bitaccess.com | acquired |
| 2015-01-01 | YCMoltin eCommerce building blocks through simple APIs for websites & apps.… · moltin.com | acquired |
| 2022-06-01 | YCAlterya Protecting Humans from Scams · alterya.dev | acquired |
| 2022-01-01 | YCMagna Carta for Web3: token vesting and DeFi investment management. · magna.so | acquired |
| 2024-06-01 | YCSepal AI Data Development for Advanced AI · sepalai.com | acquired |
| 2017-01-01 | YCScribe Scribe is an AI based Sales Development Representative that you can… · tryscribe.com | acquired |
| 2021-01-01 | YCStriga Compliant Crypto and Banking Infrastructure · striga.com | acquired |
| 2017-06-01 | The easiest way to buy 74k+ crypto tokens with USD · dharma.io | acquired |
| 2009-06-01 | The open source database for the realtime web. · rethinkdb.com | acquired |
| 2010-01-01 | Connecting users with engaging video content across the web.… · 140fire.com | acquired |
| 2007-06-01 | YCDisqus Add comments to your website. · disqus.com | acquired |
| 2021-06-01 | AI-Powered Business Development for Scientific Organizations · firstignite.com | acquired |
| 2020-06-01 | YCDialect Making internet experiences distributable and actionable everywhere · dialect.to | acquired |
| 2020-06-01 | YCReflect No-code test automation for web apps · reflect.run | acquired |
| 2022-01-01 | YCDecent Cross-chain routing + trading APIs. One-click transactions with any… · decent.xyz | acquired |
| 2019-01-01 | No-code Web Apps testing for everyone · preflight.com | acquired |
| 2020-01-01 | Build & launch your website in minutes with AI · typedream.com | acquired |
| 2023-06-01 | Open source GenAI development platform · flowiseai.com | acquired |
| 2021-06-01 | YCSatsuma Reliable blockchain indexing & querying for web3 engineering teams. · satsuma.xyz | acquired |
| 2023-06-01 | Web, Desktop, and Mobile apps with one codebase in Rust · dioxuslabs.com | acquired |
| 2015-06-01 | Power your website with Google Spreadsheets.Acquired by Instabase… · cloudstitch.com | acquired |
| 2020-06-01 | Build webapps faster with 10x better CI/CD + preview envs · webapp.io | acquired |
| 2023-06-01 | YCGlide Crypto Deposits, Wallet Funding, and Pay-with-crypto Infra · buildwithglide.com | acquired |
| 2020-06-01 | YCJemi Jemi helps people build beautiful websites and stores. · jemi.so | acquired |
| 2012-01-01 | YCFlutter Flutter combined computer vision technology with the built-in webcams… · flutterapp.com | acquired |
| 2012-06-01 | YCEasel Easel is a visual design tool built for the web. Since the web is… · easel.io | acquired |
| 2015-01-01 | Cyberfend delivers robust, real-time web and mobile security by… · cyberfend.com | acquired |
| 2015-01-01 | YCOutbound Create automated messages -- email, iOS/Android push, SMS and web… · outbound.io | acquired |
| 2010-06-01 | YCGazeHawk Eyetracking using webcams. · gazehawk.com | acquired |
| 2022-01-01 | Multi-chain token data platform · simplehash.com | acquired |
| 2010-01-01 | YCCrocodoc Embed PDFs, PowerPoints, and other documents into web and mobile apps · crocodoc.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.