[190737] in North American Network Operators' Group
Re: number of characters in a domain?
daemon@ATHENA.MIT.EDU (Matthew Pounsett)
Sat Jul 23 14:13:19 2016
X-Original-To: nanog@nanog.org
In-Reply-To: <BLUPR05MB595288C33C56BE9A7FD8181B40B0@BLUPR05MB595.namprd05.prod.outlook.com>
From: Matthew Pounsett <matt@conundrum.com>
Date: Sat, 23 Jul 2016 16:07:49 +0200
To: Ryan Finnesey <ryan@finnesey.com>
Cc: "nanog@nanog.org" <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org
On 23 July 2016 at 14:31, Ryan Finnesey <ryan@finnesey.com> wrote:
> I was hoping someone can help me confirm my research. I am correct that
> domains are now limited to 67 characters in length including the extension?
>
63 octets per label (the bits between the period separators) , 255 octets
per domain name. In ascii octets and characters are interchangeable, but as
Stephan noted, it gets slightly more complicated for IDN.
