Check if Customer.io is down, recent outages, user-reported issues, and outages map.
Customer.io is working normally
Last checked from Customer.io's status page
This chart displays the number of user-reported issues over the past 24 hours, grouped into 20-minute intervals. It's normal to see occasional reports, which may be due to individual user issues rather than a broader problem. We only consider an issue widespread if there are multiple reports within a short timeframe.
IsDown has tracked 206 incidents since started monitoring Customer.io status in April 2020. We collect data from 4400+ services, and normalize the data to give you a clear picture of the impact of the outage.
9 days ago · lasted about 1 hour
Our engineers have identified that some customers may be experiencing delays with their import processing. This includes both CSV and rETL syncs that import data into workspaces. We're investigating now and will be back with an update soon.
9 days ago · lasted about 1 hour
Our team has identified an issue that has temporarily affected exports from our Data Warehouse Sync feature. No data is lost, and all delayed data will be synced as the issue is resolved. We're currently working on a fix.
13 days ago · lasted about 1 hour
We are currently investigating this issue.
We've tracked and collected 206 incidents since started monitoring Customer.io status
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Matthew
Can't access fly.customer.io
Alex
cannot access fly.customer.io - page does not load
George
https://fly.customer.io/errors/unknown says page doesn't exsit
Benjamin
Cannot log in. It keeps saying "restoring your session" in the window where I was logged in or "unable to log in, try again later" in a private window.
Amanda
I can't log in. It just loads forever
Evan
Can't access the platform, spinning wheel of death
Simon
cant login - CORS exception
jane
can't access at all. is showing "loading" screen and nothing else
Tricia
can't even load the page or log in
Gio
Can't save or update campaigns
Jared
Can't get messages to save or update.
Clarence
I Made order with copper 06/16/24 Clarence vanterpool -vanterpool353@gmail.com
James
Sign in page not appearing
Amie
isn't firing off the email to log in, when i refresh, stays on the last page
Sam
Stuck on a loading screen upon login
Simileoluwa
I cannot log in into my company's io account.
Pml
Blank page after login in
Dovi
blank white screen
Stay Ahead of Customer.io Outages
IsDown aggregates various status pages from services into a very clear dashboard. Worth every penny.
Services commonly monitored together with Customer.io
Customer.io isn't down. You can check Customer.io status and incident details on the top of the page. IsDown continuously monitors Customer.io official status page every few minutes. In the last 24 hours, there were 0 outages reported.
Customer.io is currently operational. You can check Customer.io status and incident details on the top of the page. The status is updated in almost real-time, and you can see the latest outages and issues affecting customers.
No, there is no ongoing official outage. Check on the top of the page if there are any reported problems by other users.
Currently there's no report of Customer.io being slow. Check on the top of the page if there are any reported problems by other users.
IsDown monitors the Customer.io official status page every few minutes. We also get reports from users like you. If there are enough reports about an outage, we'll show it on the top of the page.
Customer.io last outage was on August 28, 2025 with the title "Some customers are experiencing delays with import processing"
Because IsDown is a status page aggregator, which means that we aggregate the status of multiple cloud services. You can monitor Customer.io and all the services that impact your business. Get a dashboard with the health of all services and status updates. Set up notifications via Slack, Datadog, PagerDuty, and more, when a service you monitor has issues or when maintenances are scheduled.
IsDown and DownDetector help users determine if a service is having problems. The big difference is that IsDown is a status page aggregator. IsDown monitors a service's official status page to give our customers a more reliable source of information. The integration allows us to provide more details about the outage, like incident title, description, updates, and the parts of the affected service. Additionally, users can create internal status pages and set up notifications for all their third-party services.
IsDown offers an easy way to monitor Customer.io with maximum flexibility
IsDown monitors Customer.io for major outages. A major outage is when Customer.io experiences a critical issue that severely affects one or more services/regions. When Customer.io marks an incident as a major outage, IsDown updates its internal status, the customer status page and dashboard. Depending on the customer settings, IsDown will also send notifications.
IsDown monitors Customer.io status page for minor outages. A minor outage is when Customer.io experiences a small issue affecting a small percentage of its customer's applications. An example is the performance degradation of an application. When a minor outage occurs, IsDown updates its internal status and shares that information on the customer status page. Depending on the customer settings, IsDown will also send notifications.
IsDown collects all information from the outages published in Customer.io status page to provide the most accurate information. If available, we gather the title, description, time of the outage, status, and outage updates. Another important piece of information is the affected services/regions which we use to filter the notifications that impact your business.
Customer.io publishes scheduled maintenance events on their status page. IsDown collects all the information for each event and creates a feed that people can follow to ensure they are not surprised by unexpected downtime or problems. We also send the feed in our weekly report, alerting the next maintenances that will take place.
IsDown monitors Customer.io and all their 15 components that can be affected by an outage. IsDown allows you to filter the notifications and status page alerts based on the components you care about. For example, you can choose which components or regions affect your business and filter out all other outages. This way you avoid alert fatigue in your team.
Customer.io and other vendors don’t always report outages on time. Our crowdsourced status platform helps you stay ahead of outages. Users report issues and outages, sharing details on what problems they are facing. We use that info to provide early signs of outages. This way, even without an official update, you can stay ahead of possible problems.
Very happy with isDown. Setting up and managing the monitoring is straightforward. The customer support team has been excellent, always quick to answer questions and provide assistance.
I definitely recommend IsDown.
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