Observed arrival · 2026-08-25
Root Cause Casebook: IT Incidents Under the Microscope
An evidence-grounded case archive explaining how technology teams investigate, test, and resolve public IT incidents.
Field notes
The site organizes incident analysis around a fixed sequence: record symptoms, keep hypotheses provisional, gather narrowing evidence, identify the turning point, and name the surviving mechanism. Its featured Tailscale case describes 19 corruption incidents across six months, with production telemetry used because the failure could not be reproduced synthetically. The archive also covers Meta, Google Gemini, Coinbase, and Microsoft Azure OpenAI incidents, with cases labeled by technical area and complexity.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue