The Microsoft 365 outage of August 26, 2026, as measured from 4 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 4 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.