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final class
class
A DNS label is an individual component of a DNS name.
final class
class
A LDH (Letters, Digits, Hyphen) label, which is the
classical label form.
final class
A DNS label with a leading or trailing hyphen ('-').
class
A DNS label which contains more than just letters, digits and a hyphen.
final class
A Non-Reserved LDH label (NR-LDH label), which do not have "--" in the third and fourth position.
final class
A Non-LDH label which does not begin with an underscore ('_'), hyphen ('-') or ends with an hyphen.
class
A reserved LDH label (R-LDH label), which have the property that they contain "--" in the third and fourth characters.
final class
A DNS label which begins with an underscore ('_').
class
A label that begins with "xn--" and follows the LDH rule.
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final class
A DNS name, also called "domain name".