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The Double Diamond
A curated weekly newsletter delivering essential product design insights and resources to help designers stay current with industry best practices
last checked Jul 15, 2026 · HTTP 403
CohortClass of 2026What it is
A curated weekly newsletter delivering essential product design insights and resources to help designers stay current with industry best practices. Designed to sharpen your design expertise and inform better product decisions through carefully selected content.
HTTP liveness
10 probes since Jun 16Jun 16Jul 15
AliveHard-dead (404/5xx/parked)RedirectedUnverified (timeout/DNS/block)
Observed events
probes · press · GitHub- Jul 15, 2026Probe inconclusiveCloudflare block
- Jun 16, 2026First probe — liveAlive · 200 OK
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Pulse Indexobserved activity
10 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