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Sparkbook
Sparkbook helps you stay connected with important people by identifying relationships you're losing touch with and suggesting timely outreach
verified Jul 13, 2026 · HTTP 200
CohortClass of 2026What it is
Sparkbook helps you stay connected with important people by identifying relationships you're losing touch with and suggesting timely outreach. The app features curated contact recommendations, pre-written message templates, and integrated note-taking to deepen personal and professional connections.
HTTP liveness
9 probes since Jun 16Jun 16Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
9 probes0 pressGitHub –Tranco –
Not enough observed signals for a Pulse Index (needs 2+ signal families).
Cohort survival · Class of 2026weekly
550 products launched in 2026 · 100% still active
550 active0 sunset
Still active
100%
Median lifespan
4.9y