[memcg]

I can still access https://old.reddit.com/ using Firefox with Ublock, NoScript Privacy Badger and Old Reddit Redirect addons.

Using Chrome I get: You've been blocked by network security. If you think you've been blocked by mistake, file a ticket below and we'll look into it. File a ticket

[memcg]

If I go to https://www.reddit.com/ using chrome then replace www with old it works.