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verified Jul 15, 2026 · HTTP 200
CohortClass of 2014What it is
Customer.io enables businesses to send targeted emails triggered by user actions and behaviors within their applications. Automate customer engagement workflows based on what users do—or fail to do—in real time. Perfect for product-driven email campaigns that respond to actual user activity.
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
502/4 signal families
Liveness40%1.00
Press30%no data
GitHub20%no data
Tranco10%0.98
Weighted observed activity · updated Jul 15
Cohort survival · Class of 2014weekly
10,235 products launched in 2014 · 99% still active
10,131 active104 sunset
Still active
99%
Median lifespan
4.9y