I made a down detector for down detector
18 comments
·November 19, 2025spyridonas
moffkalast
> Bunny.net
Ah yes, the place for RabbitMQ endpoints.
jesperwe
Yeah we had a good laugh when Downdetector was down during the Cloudflare outage yesterday. So this is appropriate. +1
4ndrewl
But we need another one to detect whether yours is still up.
It's downdetectorsdown all the way down.
bell-cot
Downdetection can be thought of as a directed graph, or digraph*.
From there, the "who's watching who?" can become mathematically interesting.
Nevermark
Given enough of them, some fraction will always be down. It would be helpful if we had a site that could track that ratio.
BrenBarn
Sup dawg, I heard you like down detectors.
goopypoop
and i still can't find any feathers
ricq
Is it hosted on Cloudflare?
ZeroConcerns
Thank you for your service! Now, for an even bigger challenge: since it seems the increased demand for the Cloudflare status page brought down Amazon CloudFront for a bit as well, build a new CDN capable of handling that load as well...
carstenhag
Do you need a CDN for a static html, no images? I would guess no, even if you.are being bombarded with requests
Brajeshwar
“Well, who’s gonna monitor the monitors of the monitors?”
ulf-77723
Nice! Who doesn’t like a good recursion? Fingers crossed that the down detector for down detector won’t be down, when down detector might be down
kijin
Use the original down detector to monitor the down detector for down detector for down detector. Complete the circle!
cweagans
Ah, now we know that the answer to "who watches the watchers?" is "@gusowen". :D
null
gblargg
Would it be a good idea to have a second instance of this watching the first one? /s
As a European solo developer, I’ve switched entirely to European alternatives for all my infrastructure since the beginning of the year.
Cloudflare > Bunny.net
AWS > Hetzner
Business email > Infomaniak
Not a single client site has experienced downtime, and it feels great to finally decouple from U.S. services.