CheckUpstream has measured Customer.io at 99.965% uptime over the last 90 days and 99.977% over the last 12 months. 20 incidents were recorded in the past 12 months; the most recent resolved 1 day ago after 42 minutes. Status signals are polled from Customer.io's official Atlassian Statuspage status page, alongside independent probes and community reports.
30 days uptime
100.000%
30 of 30 days clean · 0m total downtime
All windows
Downtime like this can be refundable
If you're a paying Customer.io customer, outages in these windows may count against Customer.io's SLA — vendors owe service credits for missed uptime targets, but only if you file inside the deadline. CheckUpstream tracks the entitlement, drafts the claim, and hands you the filing link.
Track your Customer.io entitlement →Last resolved incident
1 day ago · lasted 42m · Minor
7/10/2026, 5:28:07 PM · resolved 7/10/2026, 6:10:32 PM · Resolved
7/3/2026, 9:07:09 AM · resolved 7/3/2026, 11:10:18 AM · Resolved
7/2/2026, 1:51:49 PM · resolved 7/2/2026, 2:25:19 PM · Resolved
6/18/2026, 8:06:00 PM · resolved 6/18/2026, 8:35:26 PM · Resolved
Official status page: https://status.customerio.com (opens in new tab)
Live status pill for Customer.io. Updates automatically — no maintenance, no API key.
PREVIEW
Drop into any HTML page — README, docs, vendor homepage. No iframe, no dependencies.
<script src="https://checkupstream.com/embed/badge.js?service=customer-io"></script>Self-contained, CSP-friendly. Theme + size are query params; revalidates every 60s.
<iframe src="https://checkupstream.com/embed/customer-io" style="border:0;width:260px;height:44px" loading="lazy" title="Customer.io status badge"></iframe>GitHub READMEs, GitLab, MDX docs — links to the live reliability page.
[](https://checkupstream.com/reliability/customer-io)Useful for status-page composers (Notion, Slab, custom dashboards) that accept image URLs.
https://checkupstream.com/embed/customer-io/badge.svgCustomer.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.
Looking for the live "is Customer.io down" view? See the Customer.io Status page.
Customer.io's last resolved incident started 1 day ago and lasted 42 minutes (degraded performance).
Customer.io's 30-day customer-perceived uptime is 100.000%. 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.
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).
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.