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Actually the root is a null (empty) label rather than "."; dots are delimiters of labels, there is an empty label after "." in FQDNs. See RFC 1034 Section 3.1.


Having all addresses be rooted in an untypeable null isn’t much better.


It is not null, it's an empty string.


You should read the referenced RFC, it’s right there.

“””Because all domain names end at the root, which has a null string for a label…”””


"null string" or "nil string" or "empty string" are all the same thing.

IDK why we're even talking about this though.




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