Real outage case studies with direct answers, root causes, impact, and engineering lessons.
Cloudflare | 2025-11-18T00:00:00Z
A root cause analysis of Cloudflare's November 2025 outage, where a database permissions change produced an oversized Bot Management feature file and disrupted core traffic handling.
AWS | 2025-10-19T00:00:00Z
A production incident case study of the October 2025 AWS US-EAST-1 outage, where a DynamoDB DNS automation race condition cascaded into EC2, NLB, Lambda, and other services.
Google Cloud | 2025-06-12T00:00:00Z
A root cause analysis of Google Cloud's June 2025 outage, where a Service Control quota policy path crashed globally after invalid policy data propagated within seconds.
CrowdStrike | 2024-07-19T00:00:00Z
A production incident case study of CrowdStrike's July 2024 Falcon content update, which caused widespread Windows crashes and long manual recovery for affected machines.
Atlassian | 2022-04-05T00:00:00Z
A production incident case study of Atlassian's 2022 outage, where a maintenance script deleted customer sites and recovery took days.
Roblox | 2021-10-28T00:00:00Z
A case study of the Roblox 2021 outage, where service discovery and Consul cluster issues contributed to a long recovery.
Facebook | 2021-10-04T00:00:00Z
A root cause analysis of Facebook's October 2021 outage, covering BGP route withdrawal, DNS failure, and operational recovery complexity.
Fastly | 2021-06-08T00:00:00Z
A production incident case study of Fastly's 2021 CDN outage, where a latent software bug was triggered by customer configuration.
Slack | 2021-01-04T00:00:00Z
A practical case study of Slack's January 2021 outage, focusing on capacity, dependency recovery, and customer-facing degradation.
Cloudflare | 2019-07-02T00:00:00Z
A production incident case study on Cloudflare's 2019 WAF outage, where a rule change caused CPU exhaustion at the edge.
Google Cloud | Sun Jun 02 2019 00:00:00 GMT+0000 (Coordinated Universal Time)
A concise incident analysis of the Google Cloud 2019 outage, where a configuration change caused network congestion and broad service impact.
GitHub | 2018-10-21T00:00:00Z
A clear explanation of GitHub's 2018 MySQL incident, including the failover failure mode, user impact, and engineering lessons.
Azure DevOps | 2018-09-04T00:00:00Z
A practical root cause analysis of the Azure DevOps 2018 outage, including regional dependency failure, recovery gaps, and reliability lessons.
AWS | 2017-02-28T00:00:00Z
A concise root cause analysis of the AWS S3 2017 outage, its impact, remediation, and reliability lessons for production engineers.