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Diffee
Diffee enables developers and designers to quickly compare visual differences between website versions side-by-side
since Jun 16, 2026 · HTTP 404
CohortClass of 2016What it is
Diffee enables developers and designers to quickly compare visual differences between website versions side-by-side. It streamlines the process of identifying layout changes, styling updates, and design variations across web pages with an intuitive visual diffing interface.
HTTP liveness
9 probes since Jun 16Jun 16Jul 12
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
42/4 signal families
Liveness40%0.00
Press30%no data
GitHub20%no data
Tranco10%0.35
Weighted observed activity · updated Jul 15
Cohort survival · Class of 2016weekly
13,657 products launched in 2016 · 100% still active
13,633 active24 sunset
Still active
100%
Median lifespan
4.9y