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Tech Trends from 2021
A comprehensive reference guide documenting emerging technology trends from 2021 across AI, AR, VR, IoT, and 3D printing
verified Jul 13, 2026 · HTTP 200
CohortClass of 2021What it is
A comprehensive reference guide documenting emerging technology trends from 2021 across AI, AR, VR, IoT, and 3D printing. Features 80+ trend summaries including innovations like 4D printing, digital DNA, and splinternet. Designed as an easy-to-scan resource for understanding the year's most significant technological developments.
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 2021weekly
96 products launched in 2021 · 99% still active
95 active1 sunset
Still active
99%
Median lifespan
4.9y