All archive.(today|md|ph|vn) sites (including the .onion) have been down for the past day or so, displaying a loading icon that refreshes the page every few seconds.
No updates posted on owner's blog: https://lj.rossia.org/users/archive_today/
Yeah I've noticed that too. Hopefully it's just a technical blip, though I do always worry that some sort of legal pressure or creator burnout has hit the site when stuff like this happens.