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Callool
an online wake-up voice delivery service
last checked Jul 13, 2026 · Unknown
CohortClass of 2017What it is
an online wake-up voice delivery service. — Callool (https://callool.com) is an online voice delivery service, initially used for delivering personalized wake-up voice for family members and friends. [Productivity, Internet of Things, Tech]
HTTP liveness
19 probes since May 23May 23Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- May 23, 2026First probe — unverifiedUnknown
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Pulse Indexobserved activity
19 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2017weekly
13,497 products launched in 2017 · 100% still active
13,462 active35 sunset
Still active
100%
Median lifespan
4.9y