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Captionfy.io
Captionfy enables anyone to create and share captions for YouTube videos in any language, regardless of ownership
since Jun 16, 2026 · HTTP 200
CohortClass of 2026What it is
Captionfy enables anyone to create and share captions for YouTube videos in any language, regardless of ownership. The platform aggregates community-contributed subtitles, allowing viewers to watch videos with accessible captions. This democratizes video accessibility through collaborative subtitle creation.
HTTP liveness
9 probes since Jun 16Jun 16Jul 15
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026First probe — redirectedRedirected offsite
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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
567 products launched in 2026 · 100% still active
567 active0 sunset
Still active
100%
Median lifespan
4.9y