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Penflip
A social writing platform that enables writers to collaborate, share, and develop their work together
last checked Jul 13, 2026 · Unknown
CohortClass of 2013What it is
A social writing platform that enables writers to collaborate, share, and develop their work together. Penflip combines document editing with community features to foster creative collaboration.
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 — unverifiedUnknown
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Pulse Indexobserved activity
102/4 signal families
Liveness40%0.20
Press30%no data
GitHub20%no data
Tranco10%0.23
Weighted observed activity · updated Jul 15
Cohort survival · Class of 2013weekly
453 products launched in 2013 · 96% still active
437 active16 sunset
Still active
96%
Median lifespan
4.9y