The library. Every incident, structured.

A growing archive of public postmortems, broken down into a consistent shape: what broke, why it cascaded, and what to take from it. New incidents added regularly.

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3 results · filtered
topic: edge
id
incident
org
date
duration
severity
tags
FM-026
The WAF Killswitch That Crashed the Older ProxyA global WAF testing-tool killswitch exposed an FL1 proxy bug, returning HTTP 500s for sites using the older proxy and Managed Ruleset.
Cloudflare
2025-12-05
25m
SEV-2
wafconfigproxy
FM-024
Azure Front Door config crashes edge sitesIncompatible Azure Front Door customer metadata exposed a data-plane bug, crashing edge sites and causing connection timeouts and DNS errors globally.
Microsoft Azure
2025-10-29
8h 24m
SEV-1
configedgecdn
FM-025
One storage outage broke many Cloudflare productsCloudflare products shared a key-value database called Workers KV. When its backing storage failed, uncached reads and writes stopped, taking authentication, builds, AI requests, and other features with them.
Cloudflare
2025-06-12
2h 28m
SEV-1
storagekvthird-party