"The front page of the internet" is currently trying to figure out what's gone wrong.
No, it's not your imagination: Reddit is down. A cause for the outage hasn't been announced at this point, but the powers that be are currently "investigating the issue."
Attempts to reach Reddit are currently being met with a bit of alarming text: "upstream connect error or disconnect/reset before headers. reset reason: connection failure."
The problem is also clearly visible through DownDetector:
The Reddit Status account on Twitter also confirmed the outage.
We'll keep an eye on things and update when more information is available.