> It's not going to tell you which part of your service is inaccessible.
Scroll up the thread a bit; https://news.ycombinator.com/item?id=39605354
Even here on HN, where people should know better, people take its incorrect attribution as useful info. TikTok isn't down. X isn't down. Google isn't down.
I would completely agree that people are bad at interpreting Down Detector-type results, but that doesn't mean it isn't providing a very useful signal.
Indeed I haven't noticed any blip in functionality, but then again I don't ever do FB (or other external service) login. Absolutely no reason to do so, long term drawbacks are too serious to be lazy about this.
Yes? That's how all top-level reporting is going to work. It's not going to tell you which part of your service is inaccessible. It's just telling you that people can't access it. You obviously have to do additional investigation to figure out why people are having trouble.