6 ms·

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

• c0pium 3y ago
  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…”””
  • paulddraper 3y ago
    "null string" or "nil string" or "empty string" are all the same thing. IDK why we're even talking about this though.