nanog mailing list archives

Re: number of characters in a domain?


From: Matthew Pounsett <matt () conundrum com>
Date: Sat, 23 Jul 2016 16:07:49 +0200

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.


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