“The issue was not caused, directly or indirectly, by a cyber attack on Cloudflare’s systems or malicious activity of any kind. Instead, it was triggered by changes being made to our body parsing logic while attempting to detect and mitigate an industry-wide vulnerability disclosed this week in React Server Components.”
https://blog.cloudflare.com/5-december-2025-outage/
That's a good point. We might also need a down detector detector tool that can find the current end of the chain, plus a down detector detector down detector to detect when that tool is down.
I've read the blogs about what caused it, and all of them were programmer errors. Twice within one month, while it never happened before for as long as I remember. Hmm.
Let me guess - Cloudfare has recently started using AI as part of their development process.
12 replies
https://downdetectorsdowndetector.com/
“The issue was not caused, directly or indirectly, by a cyber attack on Cloudflare’s systems or malicious activity of any kind. Instead, it was triggered by changes being made to our body parsing logic while attempting to detect and mitigate an industry-wide vulnerability disclosed this week in React Server Components.” https://blog.cloudflare.com/5-december-2025-outage/
Translated:
https://downdetectorsdowndetector.com/
registers it as up but in the main thread they have places all over the world again
https://www.reddit.com/r/sysadmin/comments/1peq658/cloudflare_down_again/
or for anyone who wants to watch like a football game
https://reddit-stream.com/comments/1peq658/
edit: looks like it's back up, quick outage
we must go deeper: https://downdetectorsdowndetectorsdowndetectorsdowndetector.com/
But who checks the checker's checker's checker's checker?
https://detectorsdowndetectorsdowndetectorsdowndetectorsdowndetector.com/
How far does this go?
Could just add the deepest to downdetector and complete the loop.
But would it still be the deepest one shortly after posting?
That's a good point. We might also need a down detector detector tool that can find the current end of the chain, plus a down detector detector down detector to detect when that tool is down.
I've read the blogs about what caused it, and all of them were programmer errors. Twice within one month, while it never happened before for as long as I remember. Hmm.
Let me guess - Cloudfare has recently started using AI as part of their development process.