37 postmortems from Cloudflare
- When DNSSEC goes wrong: how we responded to the .de TLD outage
- Cloudflare outage on February 20, 2026
- Route leak incident on January 22, 2026
- Cloudflare outage on December 5, 2025
- Cloudflare outage on November 18, 2025
- A deep dive into Cloudflare's September 12, 2025 dashboard and API outage
- Cloudflare Incident on August 21, 2025
- Cloudflare 1.1.1.1 incident on July 14, 2025
- Cloudflare service outage June 12, 2025
- Cloudflare incident on March 21, 2025
- Cloudflare incident on February 6, 2025
- Cloudflare Incident on November 14, 2024, Resulting in Lost Logs
- Cloudflare 1.1.1.1 incident on June 27, 2024
- Cloudflare incident on June 20, 2024
- Major data center power failure (again): Cloudflare Code Orange tested
- Thanksgiving 2023 security incident
- Post mortem on the Cloudflare Control Plane and Analytics Outage
- Cloudflare incident on October 30, 2023
- How Cloudflare mitigated yet another Okta compromise
- 1.1.1.1 lookup failures on October 4, 2023
- Hardening Workers KV
- Cloudflare incident on January 24, 2023
- Cloudflare outage on June 21, 2022
- Cloudflare's investigation of the January 2022 Okta compromise
- BGP security and confirmation biases
- A Byzantine failure in the real world
- Cloudflare outage on July 17, 2020
- Cloudflare Dashboard and API Outage on April 15, 2020
- Details of the Cloudflare outage on July 2, 2019
- How Verizon and a BGP Optimizer Knocked Large Parts of the Internet Offline Today
- Incident report on memory leak caused by Cloudflare parser bug
- How and why the leap second affected Cloudflare DNS
- A Post Mortem on this Morning's Incident
- Today's Outage Post Mortem
- Post Mortem: What Yesterday's Network Outage Looked Like
- Today's Outage Post Mortem
- Post Mortem: The Ugly, the Bad & the Good
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