Are there any notable websites actually on that infrastructure?
The ‘Project Showcase’ only shows a single example.
The ‘Project Showcase’ only shows a single example.
Alternate roots are on thin ice in general nowadays, especially as there's no reasonable way to safely issue TLS certificates for domains which aren't under the ICANN root. (Running your own CA introduces a lot of messy trust issues and is inadvisable.)
But doing that would mean to either trust the current resolver you are using, which is unacceptable, as it's sometimes cloudflare or google, or running your own resolver on every device -- which also does not work. It is absolutely crucial for the DNS system we have today that there's a small number of resolvers that have large caches, otherwise root servers would blow up. Unless we massively start implementing some novel RFCs.