Quad9 Outage History
2 incidents recorded over the last 365 days, 2 of them resolved. Durations are measured from when PulsAPI first saw the problem to when it cleared, which is usually longer than the vendor's own figure.
Every Recorded Quad9 Incident
| Date | Incident | Duration | Status |
|---|---|---|---|
| Sep 23, 2026 | Service degradation in Asia | 1027h 48m | Resolved |
| Jun 29, 2026 | Some services are down | 1525h 37m | Resolved |
Hear about the next one while it is open
Everything above is a record written after the fact. We can email you when the next Quad9 incident opens instead, at the point where knowing still changes what you do.
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How to Read This Quad9 Incident Log
Each row is an incident PulsAPI observed, not a summary written afterwards. The duration is wall-clock time between the first failing check and the first clean one, so it includes the window before Quad9 acknowledged anything. Vendor post-mortems typically measure from acknowledgement, which is why their numbers are usually shorter.
Incidents still open have no duration yet and are listed as ongoing rather than being given a running total. The archive covers the last 365 days; anything older has aged out of the window rather than never having happened.
The longest single Quad9 outage in this window ran 63d 13h, against a mean recovery of 53d 4h. If you depend on Quad9 in a customer-facing path, the longest figure is the one to design around. The mean is what happens on a normal bad day; the maximum is what happens on the worst one.