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Data Viz with JS (book)

Data Viz with JS (book)

Free chapters from a book by Stephen A

Education·Launched Oct 2014·0 upvotes·jsdatav.is

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ALIVEverified Jul 12, 2026 · HTTP 200

CohortClass of 2014

What it is

Free chapters from a book by Stephen A. Thomas [Tech]

HTTP liveness

9 probes since Jun 16

Jun 16Jul 12

AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)

Observed events

probes · press · GitHub

Jun 16, 2026
First probe — live
Alive · 200 OK

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Tags

open source funded free developers researchers code

Pulse Indexobserved activity

9 probes0 pressGitHub –Tranco –

Not enough observed signals for a Pulse Index (needs 2+ signal families).

Cohort survival · Class of 2014weekly

10,235 products launched in 2014 · 99% still active

10,131 active104 sunset

Still active

99%

Median lifespan

4.9y