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99% Invisible - The Gruen Effect

99% Invisible - The Gruen Effect

Sociological Study Of The Design Of Retail Spaces

Education·Launched Sep 2015·0 upvotes·jabbercast.com

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UNVERIFIEDlast checked Jul 10, 2026 · Unknown

CohortClass of 2015

What it is

Sociological Study Of The Design Of Retail Spaces

HTTP liveness

8 probes since Jun 16

Jun 16Jul 10

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

Observed events

probes · press · GitHub

Jun 16, 2026
First probe — unverified
Unknown

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Vitals

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Press

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Tags

consumers students audio researchers

Pulse Indexobserved activity

8 probes0 pressGitHub –Tranco –

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

Cohort survival · Class of 2015weekly

12,940 products launched in 2015 · 100% still active

12,899 active41 sunset

Still active

100%

Median lifespan

4.9y