Post on 31-Dec-2015
2009/Nov/10 DNSOP@IETF-76 new TLD name rules
Top Level Domain Name Specification
draft-liman-tld-names-01
Lars-Johan Limanliman@autonomica.se
Represented by
Olafur Gudmundsson
2009/Nov/10 DNSOP@IETF-76 new TLD name rules
Background
• RFC1123: TLD names are “alphabetic” – [A-Za-z]+
• IDN names start with: “xn—” – Not allowed as TLD name
• Work started in DNS Directorate– IANA would like technical rules to follow for
new TLD’s.
2009/Nov/10 DNSOP@IETF-76 new TLD name rules
Proposed new TLD rules:
• tldlabel = traditional-tld-label / idn-label– traditional-tld-label = 1*63(ALPHA)– idn-label = Restricted-A-label– ALPHA = %x41-5A / %x61-7A ; A-Z / a-z– L = Ll / Lm / Lo / Lt / Lu
• Ll = Lowercase-Letter• Lm = Modifier-Letter• Lo = Other-Letter• Lt = Titlecase-Letter• Lu = Uppercase-Letter
• L rule from– http://tools.ietf.org/html/draft-ietf-idnabis-defs-12
2009/Nov/10 DNSOP@IETF-76 new TLD name rules
Comments/questions