The Microsoft 365 outage of August 26, 2026, as measured from 10 regions

Region-by-region timeline

When each monitored region started failing and when it recovered, per RealUptime's own probes. A region not listed here never failed during this incident.

How this was measured

This record comes only from RealUptime's own scheduled probes against Microsoft 365's public, unauthenticated endpoints, run from 10 named regions. It is never built from user reports or from Microsoft 365's own status page, and it does not change once this incident closes: this page is the permanent record, not a live view.

See Microsoft 365's full evidence record or read the methodology.