You asked about B2B
Nobody in the register described anything this way.
| Launched | What it was | Today |
|---|---|---|
| 2012-01-01 | Digital Analytics Platform · amplitude.com | acquired |
| 2013-01-01 | YCHeap Captures user interactions with no code to generate analytics. · heap.io | acquired |
| 2016-01-01 | YCGitPrime Visibility and analytics for software development leaders. · gitprime.com | acquired |
| 2013-01-01 | YCGrepData Big Data Analytics · grepdata.com | acquired |
| 2013-01-01 | YCScuba Analytics for impatient people. · scuba.io | acquired |
| 2014-06-01 | YCTenjin Mobile marketing analytics and infrastructure · tenjin.com | acquired |
| 2022-01-01 | YCSarus Use personal data for analytics and ML, safely and seamlessly · sarus.tech | acquired |
| 2011-01-01 | YCCustora Custora is a predictive analytics platform for e-commerce marketing… · custora.com | acquired |
| 2011-06-01 | Facebook analytics. Acquired by Unified in January 2013.
· pagelever.com | acquired |
| 2018-01-01 | Causal Analytics for Growth Teams · clearbrain.com | acquired |
| 2011-06-01 | Analytics with action · freshplum.com | acquired |
| 2015-01-01 | YCPomello Analytics software that helps companies measure organizational… · pomello.com | acquired |
| 2022-01-01 | YCHydra Serverless Analytics on Postgres · hydra.so | acquired |
| 2022-06-01 | YCVizzly Customer-Facing Analytics for Modern SaaS. · vizzly.co | acquired |
| 2023-01-01 | YCBrewit Conversational data analytics for every team · brewit.ai | acquired |
| 2014-01-01 | Open-source time-series data analytics extension for PostgreSQL · pipelinedb.com | acquired |
| 2011-01-01 | YCHotspots Real-time analytics (acq by TWTR, 2012) · moki.tv | acquired |
| 2023-01-01 | Modern analytics for CPG brands · muffindata.com | acquired |
| 2008-06-01 | YCBackType BackType was an analytics company acquired by Twitter in 2011 · backtype.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.