Single letter TLD
When running a private network with DNS the network admin will set up .localdomain or .local as TLD for the private network.
But that's so many letters! Single letter TLDs are not assigned to anyone. While I'm pretty sure that's not an official rule, it would seem that they are specifically excluded. See the current list.
blog/2021/1111_single_letter_tld.txt · Last modified: 2023/05/16 21:36 by davek