Is Customer.io down?
Customer.io is operational
No — the Customer.io API is operational. Our last check succeeded in 101ms.
Last checked just now
Current status
Last response
101ms
Having problems with Customer.io?
No user reports in the last hour.
Uptime
24 hours
100.00%
102ms median
7 days
100.00%
103ms median
30 days
100.00%
102ms median
90 days
100.00%
101ms median
Get an email the next time Customer.io or another Email API has trouble:
🔔 Get outage alerts by email
Double opt-in, one email per incident, unsubscribe anytime. Pricing
Response time — last 24 hours
Uptime history
Recent incidents
RSSNo incidents recorded. 🎉
Embed this status
Frequently asked questions
Is Customer.io down right now?
No — the Customer.io API is operational. Our last check succeeded in 101ms.
How does APIzone check if Customer.io is down?
APIzone continuously probes a public Customer.io API endpoint from its own independent infrastructure and records response status and latency. Status is derived from consecutive failures and latency deviation — not from Customer.io's own status page — so it reflects what we independently observe.
What does "degraded" mean for the Customer.io API?
Degraded means the Customer.io API is reachable but not fully healthy: some recent checks are failing, or response times are far above the normal baseline. It's a warning state between fully operational and down.
How reliable has Customer.io been?
Over the last 90 days, APIzone has measured 100.00% uptime for the Customer.io API. See the uptime breakdown above for 24-hour, 7-day, 30-day, and 90-day figures.
Can I get alerted when Customer.io goes down?
Yes. Enter your email in the alert box on this page to be notified by email the moment the Customer.io API goes down or is degraded, and again when it recovers. Slack, Discord, and Microsoft Teams delivery are also available.
About this monitor
APIzone continuously probes a public Customer.io API endpoint from independent infrastructure and records response status and latency. This is not affiliated with Customer.io and may differ from their official status page.