The lawsuit has been settled. Gutenberg has been unblocked in Germany since late October. The site was completely blocked for three years, from 2018 on. Now, a total of 19 German language books are blocked, per the "terms of the settlement are confidential." Everything else works.
I have information that the abysmal filth is still in place: "Sito sotto sequestro".
I wonder how your provider overrides it. Is it too much of a wet dream to think that some operators (behind the DNS) responded to the requests of the vacuously appointed low scum* with disdainful neglect? In terms of "If you really had any credential for existence but some forms of physical expression, we would say that you must be joking - before putting the proof of your vilty in the trash archival it deserves".
*May I remind that they appended the apex of Civilization, Project Gutenberg, to a list of a dozen pirate sites in their "operation". No, really, I cannot find words to label those lowest abysses.
Just tried it at home and loads fine from broadband too. That "Sito sotto sequestro" literally means "site has been seized", which of course isn't the case here; that page might indicate that the carrier has been forced to resolve that domain elsewhere, therefore all it needs is using an external name server to get around the block.
I'm currently using one of Cloudflare DNS addresses and it loads just fine.
I don't use the (ex) national provider (Telecom Italia / Tim) however. Crappy service aside, they're well known for jumping every time the government tells them to, and happily filter a lot of stuff.
https://cand.pglaf.org/germany/index.html
Gutenberg was blocked in Italy in early 2020. I don't know if this block still persists.
https://www.balcanicaucaso.org/eng/Areas/Italy/Project-Guten...