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Keycdn Web Performance Test URL Speed
A free online tool for analyzing web performance metrics and testing individual assets
verified Jul 15, 2026 · HTTP 200
CohortClass of 2016What it is
A free online tool for analyzing web performance metrics and testing individual assets. Helps developers identify bottlenecks and optimize loading speeds. Query and benchmark single assets with detailed performance insights.
HTTP liveness
19 probes since Jun 16Jun 16Jul 15
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
482/4 signal families
Liveness40%1.00
Press30%no data
GitHub20%no data
Tranco10%0.84
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