Postmortem Index

Explore incident reports from various companies

Company

Cloudflare

12 published postmortems tracked here, spanning Mar 2013 – Nov 2025.

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Postmortems
12
Categories
7
Years covered
13
Products
6
Title Date Categories Source
Cloudflare systemwide outage, November 18, 2025
Bot Management
 2025-11-18
Automation Config Change
Original →
Cloudflare Control Plane and Analytics Outage due to Flexential Power Failure
control plane, analytics services
 2023-11-02 – 2023-11-04
Cascading Failure Hardware
Original →
Cloudflare 1.1.1.1 lookup failures on October 4, 2023
1.1.1.1 DNS resolver
 2023-10-04
Automation Cloud
Original →
Cloudflare service token incident on January 24, 2023
service tokens
 2023-01-24
Automation Cloud Config Change Hardware Security
Original →
Partial Cloudflare outage on October 25, 2022
Tiered Cache
 2022-10-25
Original →
Cloudflare outage on June 21, 2022 2022-06-21
Automation Config Change
Original →
Cloudflare API and dashboard availability incident on 2020-11-02
API and dashboard
 2020-11-02
Automation Cascading Failure Security
Original →
Cloudflare outage on July 17, 2020
Cloudflare backbone network
 2020-07-17
Config Change Security
Original →
Cloudflare global outage on July 2, 2019
Cloudflare WAF Managed Rules
 2019-07-02
Cascading Failure Config Change Security
Original →
Leap second affected Cloudflare DNS
Cloudflare DNS
 2017-01-01
Cascading Failure Time
Original →
Cloudflare parser bug causes memory leak
Cloudflare parser
 2016-09-22 – 2017-02-18
Config Change Security
Original →
Cloudflare global outage due to router configuration error
Cloudflare edge network
 2013-03-03
Automation
Original →