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Viztro
Viztro is a free, ad-free learning platform designed to teach web stack fundamentals to everyone
verified Jul 13, 2026 · HTTP 200
CohortClass of 2026What it is
Viztro is a free, ad-free learning platform designed to teach web stack fundamentals to everyone. Users can access educational content anytime without creating an account, making web development knowledge accessible to learners at all levels.
HTTP liveness
11 probes since May 23May 23Jul 13
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jun 16, 2026Back onlineAlive · 200 OK
- Jun 12, 2026Probe inconclusiveTimeout
- May 23, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
11 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