Microsoft Azure Outage History

Every Recorded Microsoft Azure Incident

How to Read This Microsoft Azure 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 Microsoft Azure 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 Microsoft Azure outage in this window ran 66d 12h, against a mean recovery of 37d 7h. If you depend on Microsoft Azure 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.