You asked about Alternative Battery Tech

27 people built something like it. 27 are gone.

That is 100% of the ones whose fate we could settle, against 23% across the whole register.

Matching
27
Gone
100%
Median life
Acquired
0

Matching launches

checked 10 hours ago · 250 probed today
LaunchedWhat it wasToday
2021-09-10
medusa-commerce.com
gone
2021-01-07
synergyjs.org
gone~54mo
2023-03-06
sorbay.io
gone
2023-07-02
bigcapital.ly
gone
2022-06-26
crproxy.com
gone
2022-04-28
gaclient.com
gone
2023-06-08
10xjobs.net
gone
2021-10-11
hellocaribou.com
gone
2021-04-06
noat.cards
gone
2021-09-14
hackerpen.io
gone
2023-07-19
chat.nbox.ai
gone
2022-06-21
scenario.tech
gone
2022-10-30
skipbigtech.com
gone
2021-06-15
tilodb.com
gone
2021-10-07
fifthtry.com
gone
2022-12-30
fetcher.page
gone
2022-12-16
sendie.com
gone
2022-05-13
sodha.dev
gone
2021-09-26
jobsinhealthtech.com
gone
2023-01-21
houseofsupr.com
gone
2022-08-10
layoffbase.com
gone
2023-05-01
poeticmetric.com
gone
2023-11-03
minimanuals.com
gone
2021-01-01
englog.io
gone~27mo
2023-05-24
muny.im
gone
2023-03-30
atomix.design
gone
2023-08-03
modelfusion.dev
gone

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.