Question 1

Is Customer.io currently down?

Accepted Answer

Customer.io is currently Operational. CheckUpstream tracks Customer.io in real-time across the official status page, RSS / Atom feeds, and community telemetry — refresh this page for the latest reading.

Question 2

When did Customer.io last have an outage?

Accepted Answer

Customer.io's last resolved incident started 1 day ago and lasted 34 minutes (degraded performance).

Question 3

What's Customer.io's 30-day uptime?

Accepted Answer

Customer.io's 30-day customer-perceived uptime is 99.953%. The figure is weighted (full-outage = 1.0, degraded = 0.3) so component blips don't collapse the score the way a raw incident-count would.

Question 4

How do I monitor Customer.io in production?

Accepted Answer

Sign up to CheckUpstream and add Customer.io to a watchlist. We send incident alerts via Slack, email, webhook, or PagerDuty within seconds of detection — covering both the official status page and community signals (HN, Reddit, Bluesky, Cloudflare Radar).

Question 5

How does CheckUpstream track Customer.io?

Accepted Answer

We poll Customer.io's official status page on a 1-5 minute cadence, parse its RSS / Atom feed as a fallback, ingest community signals from social platforms, and aggregate per-org SDK telemetry. Multiple sources reduce false positives versus any single feed alone.

Customer.io.

Recent incidents

Delays in processing requests

AI Agent and LLM Campaign Actions Disruption

Some customers seeing delays setting up Pipelines in new EU workspaces

Salesforce and Hubspot syncs might be delayed for some EU customers

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Frequently Asked Questions

Customer.io UI is currently inaccessible

UI inaccessible

Reverse ETL Syncs not being run for some EU Customers

Some customers are seeing message delivery delays (emails and webhooks)

Customers in the EU region may experience delays in message sending

Some customers in our EU region may experience errors and delays

Delay in Salesforce & Hubspot data-in integrations

Customer.io UI is currently unavailable for some customers

Some customers in our EU region may experience errors and delays

Integration Destinations UI Disruption

EU Region API Processing Delays