Vendor record
Customer.io
Checked
Front door check counts and Customer.io’s own incident posts. Use them to investigate a dependency; neither confirms what happened in your app.
Front door checks
We have no front door checks against Customer.io in the last 30 days. That does not show whether it was reachable.
Checks 15 minutes apart cannot see disruptions shorter than that. A check that reached the front door does not show that every Customer.io product, region or your app worked.
How we count front door checksCustomer.io says
Incident posts from Customer.io’s status page, with its titles, impact levels and times. They say what Customer.io chose to post, not what reached your app.
A closed record shows when our record closed. Some older records closed when a post left the status page, without a resolution post from the vendor.
30
incidents Customer.io posted, last 1 year
Median recorded duration: 42m. From 30 incidents with vendor-supplied starts and recorded closure times.
Most recent records · all dates
Some customers may experience delays in message sending
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(34m)
Reduced Deliverability to Microsoft-Hosted Email Addresses
Not specifiedCustomer.io’s postStarted, per Customer.io
Closed in our record(1h 23m)
Investigating issues with the Agent
MinorStarted, per Customer.io
Closed in our record(5m)
Customer.io UI is inaccessible
Not specifiedCustomer.io’s postStarted, per Customer.io
Closed in our record(34m)
Delays in processing and UI inaccessible for some customers in the US datacentre
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(27m)
15 older records
Issues accessing EU accounts
MajorCustomer.io’s postStarted, per Customer.io
Closed in our record(15m)
Some EU users are experiencing delays in processing
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(1h 37m)
Some customers are experiencing data processing and message-sending delays
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(1h 2m)
Delaying in message sending
MajorCustomer.io’s postStarted, per Customer.io
Closed in our record(43m)
Some customers are experiencing data processing delays
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(2h 35m)
Delays processing send events in some environments
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(42m)
User Interface is currently unavailable for some users in EU. Data processing delays
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(2h 3m)
User Interface is currently unavailable, data processing delays
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(33m)
Some customers are currently unable to access the account Billing page in our UI
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(29m)
Investigating Connectivity Issues
MajorCustomer.io’s postStarted, per Customer.io
Closed in our record(2h 42m)
Delays in processing requests
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(34m)
AI Agent and LLM Campaign Actions Disruption
Not specifiedCustomer.io’s postStarted, per Customer.io
Closed in our record(1h 12m)
Some customers seeing delays setting up Pipelines in new EU workspaces
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(52m)
Salesforce and Hubspot syncs might be delayed for some EU customers
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(1h 29m)
Customer.io UI is currently inaccessible
MinorCustomer.io’s postStarted, per Customer.io
Closed in our record(10m)
Your code, your dependencies
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Add Customer.io status to your page.
Choose the format your page supports, then copy the code. Badges show the recorded vendor status; they do not establish impact on your app.
Frequently Asked Questions
Is Customer.io currently down?
Customer.io's latest recorded status is Operational. Check the timestamp and linked source at the top of this page. A vendor status report does not establish whether your application was affected.
When did Customer.io last have an outage?
The most recent closed incident record began 26 days ago and spans 34 minutes. The vendor reported degraded performance. Closure may reflect a disappeared post or an expired tracking period; it does not confirm vendor or application recovery. Check the dated history and source links.
Does CheckUpstream publish an uptime percentage for Customer.io?
No. CheckUpstream does not run front door checks against Customer.io. The incident history on this page is what Customer.io reported, not a measure of how often it was available.
How do I monitor Customer.io in production?
Create your account, connect GitHub or GitLab and choose a public or private repository. Review the vendor matches and your alert settings. Available notification channels and history depend on your plan.
How does CheckUpstream track Customer.io?
This record separates vendor-reported incidents from independent checks. Sources and coverage vary by vendor: review the linked source, check time and measurement scope. Neither kind of evidence establishes SLA credit eligibility.