Internationalized Domain Name ,IDN,"IDNs are domain names that include characters used in the local representation of languages that are not written with the twenty-six letters of the basic Latin alphabet ""a-z"" All operations defined in the DNS protocol use A-labels exclusively
ICANN is not responsible for profile content or verification of user details Although the definitions of A-labels and LDH-labels overlap, a name consisting exclusively of LDH labels, such as""icann

ما معنى: تكثرن اللعن وتكفرن العشير؟

The ASCII form of an IDN label is termed an ""A-label"".

يا شبابَ العرب!
يكفرن العشير
An IDN can contain Latin letters with diacritical marks, as required by many European languages, or may consist of characters from non-Latin scripts such as Arabic or Chinese
The Unicode form of an IDN therefore requires special encoding before it is entered into the DNS
A domain name that only includes ASCII letters, digits, and hyphens is termed an ""LDH label"" Many languages also use other types of digits than the European ""0-9""
org"" is not an IDN The following terminology is used when distinguishing between these forms: A domain name consists of a series of ""labels"" separated by ""dots""

يا شبابَ العرب!

These are also included in the broader range of ""Unicode characters"" that provides the basis for IDNs.

ما معنى: تكثرن اللعن وتكفرن العشير؟
The Unicode form, which a user expects to be displayed, is termed a ""U-label""
The ""hostname rule"" requires that all domain names of the type under consideration here are stored in the DNS using only the ASCII characters listed above, with the one further addition of the hyphen ""-""
شرح وترجمة حديث: اقبل الحديقة وطلقها تطليقة
A special form of ""ASCII compatible encoding"" abbreviated ACE is applied to this to produce the corresponding A-label: xn--11b5bs1di