Zendesk has been highly reliable recently: StatusBird's independent monitoring recorded 100.0% availability and zero major incidents over the last 90 days.
Numbers alone do not tell you whether to worry, so this post also covers what actually breaks when Zendesk has problems and how to get warned early.
What is Zendesk?
Zendesk is a customer service platform that centralizes support tickets from email, live chat, messaging, phone, and social channels into one agent workspace. E-commerce brands use it to run their support inbox, often with Shopify or order system integrations so agents see purchase details next to tickets, plus a help center for self-service and AI or macro-driven automation for common questions like order status and returns.
Zendesk uptime and outage history
| Metric (90 days, as of July 2026) | Value |
|---|---|
| Availability | 100.0% |
| Reliability grade | A+ |
| Major incidents | 0 |
| Total major-outage downtime | 0 minutes |
| Average incident duration | n/a |
| Most recent major incident | None in the last 90 days |
| Checks in window | 43,605 |
Among the 4 customer support services StatusBird monitors, Zendesk ranks number 3 for 90-day availability. See the full ranking of customer support tools by reliability.
What happens to your store when Zendesk goes down?
When Zendesk goes down, your support operation stalls: agents cannot load tickets or get logged out, incoming emails queue on Zendesk's side instead of reaching the inbox, and embedded chat or messaging widgets on your store stop connecting. Your help center can go down too, removing self-service exactly when contact volume rises. Customers do not stop having problems during the outage, so a backlog builds and first-response metrics blow out for the day.
Typical symptoms during a Zendesk outage:
- Agent workspace not loading, erroring, or logging agents out
- New tickets not arriving despite customers confirming they emailed
- Chat or messaging widget on your store failing to connect
- Help center pages returning errors
- Zendesk API errors in integrations and apps that read or create tickets
If you are in the middle of an incident right now, see what to do when Zendesk goes down for a step-by-step playbook.
Frequently asked questions
Are customer emails lost while Zendesk is down?
Usually not. Email is queued and retried by mail servers, so messages sent during an outage generally convert into tickets once Zendesk recovers, sometimes with delay. Chat and messaging conversations that never connected are the more likely permanent gap.
How do I keep supporting customers during a Zendesk outage?
Fall back to the raw mailbox behind your support address if you retain access to it, and publish a temporary contact route on your site or social profiles. Log every out-of-band interaction so you can create tickets afterward and keep your history complete.
How this data is measured
StatusBird checks Zendesk's status every 2 minutes, around the clock, independently of the vendor. The availability figure counts major and critical outages only; minor degradation is excluded so numbers are not skewed by vendors that report small blips near-continuously. Grades run from A+ to F. See the live numbers on the Zendesk reliability page and current status on the Zendesk status page, or browse all 84 service grades.
Know before your customers do
StatusBird monitors Zendesk and 83 other services online stores depend on, plus your own storefront, every 2 minutes. When something goes down you get an SMS, email, or Slack alert with plain-English context, usually before the official status page catches up. Start monitoring free, no card required for the free plan.