You asked about AR

15 people built something like it. 4 are gone.

That is 27% of the ones whose fate we could settle, against 23% across the whole register.

Matching
22
Gone
27%
Median life
Acquired
0

Matching launches

checked 11 hours ago · 250 probed today
LaunchedWhat it wasToday
2022-02-23
supernotes.app
still up
2021-01-30
nn.labml.ai
still up
2022-05-07
ankify.krxiang.com
unverified
2021-12-01
burnernote.com
still up
2022-02-11
windi.app
gone
2021-07-29
notes.cx
unverified
2021-01-03
organizedly.io
gone~4mo
2021-01-15
supernotes.app
still up
2023-12-07
temporarynote.com
moved
2021-11-25
instadeq.com
still up
2021-07-10
airclick.io
still up
2022-04-10
waaard.com
still up
2021-02-27
olvy.co
still up
2021-07-01
litenote.cc
unverified
2023-09-20
noteson.life
moved
2022-02-14
deepnote.com
still up
2022-06-01
flint.so
unverified
2022-08-02
simplenote.com
still up
2023-04-27
subito.so
gone
2022-11-05
crumple.me
unverified
2021-11-15
bus.tl
gone
2021-11-14
luckynote.io
still up

How this compares

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.