Is CustomerIO down right now?
No — CustomerIO is up. All systems operational as of Oct 12, 4:57 AM UTC.
Current Status
All Systems Operational
Components
Recent Incidents
Some US customers may experience delays in message sending
minorSep 19, 2026 · resolved Sep 19
This incident has been resolved.
Reduced Deliverability to Microsoft-Hosted Email Addresses
noneSep 4, 2026 · resolved Sep 4
Microsoft has resolved the underlying issue, we are seeing deliveries to their services resume as normal. Earlier bounces will be retried accordingly. We appreciate your understanding and please do reach out to support if you need any further assistance.
Investigating issues with the Agent
minorSep 3, 2026 · resolved Sep 3
This incident has been resolved.
Customer.io UI is inaccessible
noneAug 5, 2026 · resolved Aug 5
This incident has been resolved.
Delays in processing and UI inaccessible for some customers in the US datacentre
minorAug 3, 2026 · resolved Aug 3
This incident has been resolved. Thanks for your patience.
Get alerted when CustomerIO goes down
Alert24 monitors CustomerIO and 3,700+ other cloud and SaaS providers. When an outage is detected, it updates your status page automatically and pages your on-call team. No manual updates at 2 AM.
CustomerIO status — frequently asked questions
Is CustomerIO down right now?
No — CustomerIO is up. All systems operational as of Oct 12, 4:57 AM UTC.
What is CustomerIO's current status?
CustomerIO: All Systems Operational. Alert24 checks CustomerIO's status page continuously and can notify you the moment it changes.
How do I get alerted when CustomerIO goes down?
Alert24 monitors CustomerIO and 3,700+ other cloud and SaaS providers. When an outage is detected it updates your status page automatically and pages your on-call team — no manual checks. Start free at alert24.net.