OpenNIC has a lot of non-ICANN domains but runs in a fashion similar to ICANN (central organization deciding rules for TLDs). Iirc there are some small non-US communities that use this a lot.
There are also a decent amounts of crypto TLDs (.bit for namecoin, Ethereum has a couple, etc).
There are of course a lot of corporations that use custom DNS domains for internal purposes, like .corp or .internal or the like.
It is difficult to get people to change their DNS serves en masse to something non-standard. The lack of being able to get real TLS certificates is also an issue though there is work in this direction: OpenNIC is developing a traditional CA afaik and namecoin has some experimental stuff to support DNSSEC and TLSA to have TLS certs enforced by the blockchain.
OpenNIC has a lot of non-ICANN domains but runs in a fashion similar to ICANN (central organization deciding rules for TLDs). Iirc there are some small non-US communities that use this a lot.
There are also a decent amounts of crypto TLDs (.bit for namecoin, Ethereum has a couple, etc).
There are of course a lot of corporations that use custom DNS domains for internal purposes, like .corp or .internal or the like.
It is difficult to get people to change their DNS serves en masse to something non-standard. The lack of being able to get real TLS certificates is also an issue though there is work in this direction: OpenNIC is developing a traditional CA afaik and namecoin has some experimental stuff to support DNSSEC and TLSA to have TLS certs enforced by the blockchain.