You asked about Note-taking

25 people built something like it. 8 are gone.

That is 32% of the ones whose fate we could settle, against 23% across the whole register.

Matching
32
Gone
32%
Median life
Acquired
0

Matching launches

checked 9 hours ago · 250 probed today
LaunchedWhat it wasToday
2021-03-17
wiki.dendron.so
still up
2021-03-06
critical-notes.com
unverified
2021-11-24
airgram.io
gone
2021-07-10
airclick.io
still up
2021-10-07
git.bitmycode.com
still up
2021-04-28
cinwell.com
still up
2021-06-02
spiritnotes.com
still up
2021-10-20
membr.shiftlabz.com
unverified
2021-12-26
windofchange.me
gone
2021-01-30
nn.labml.ai
still up
2021-09-22
noteship.com
still up
2021-12-01
burnernote.com
still up
2021-06-28
get21stnight.com
still up
2021-06-02
mani.ai
unverified
2021-07-29
notes.cx
unverified
2021-10-16
stormah.com
still up
2021-01-03
organizedly.io
gone~4mo
2021-01-15
supernotes.app
still up
2021-04-01
notesnook.com
still up
2021-11-25
instadeq.com
still up
2021-02-27
olvy.co
still up
2021-10-12
organized.ly
gone
2021-06-01
Meeting agendas, notes, & goals that tie back to your OKRs · hypercontext.com
gone
2021-01-12
northnotes.app
gone~20mo
2021-07-01
litenote.cc
unverified
2021-02-02
privanote.xyz
unverified
2021-06-17
voicl.com
gone
2021-06-02
wwdcnotes.com
still up
2021-11-05
lity.cc
still up
2021-11-15
bus.tl
gone
2021-11-14
luckynote.io
still up
2021-12-07
renote.so
unverified

How this compares

Where they launched

share gone · line is the 23% average
  1. Show HN 2429%
  2. Y Combinator 1100%

Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.

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.