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Twenty Bits I Learned #3
A hardcover design book featuring reflections on web design principles and practices from SimpleBits' founder Dan Cederholm
since Jun 16, 2026 · HTTP 404
CohortClass of 2026What it is
A hardcover design book featuring reflections on web design principles and practices from SimpleBits' founder Dan Cederholm. Combining mid-century aesthetics with artistic illustrations, it documents pivotal moments and learnings from the early web era through contemporary design challenges.
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 — downDead · 404
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Pulse Indexobserved activity
62/4 signal families
Liveness40%0.00
Press30%no data
GitHub20%no data
Tranco10%0.58
Weighted observed activity · updated Jul 15
Cohort survival · Class of 2026weekly
567 products launched in 2026 · 100% still active
567 active0 sunset
Still active
100%
Median lifespan
4.9y