https://consensus-health.torproject.org/

Looks like the Tor consensus is broken at this moment. Unclear why. It'll take awhile for the network to fail. But if it stays broken it eventually will as the consensus becomes invalid.

Reminder: Tor is centralized. Knocking out a half dozen directory authorities is enough to shut it down.

Consensus health

All v3 Onion Addresses Down After Attack On The Tor Network - Dark Net Daily

For a few hours today all v3 onion addresses on the Tor network were down. This appears to be a new kind of attack which affects the entire network and involves overloading the consensus authority nodes. All v3 Onion Addresses Down After Attack On The Tor Network.

Dark Net Daily