The number of wire octets is <= 255. The number of presentation characters <= 1008 (63*4*3 + 62*4 + 4) In message <5793C61B.4080107@dougbarton.us>, Doug Barton writes:
On 07/23/2016 07:07 AM, Matthew Pounsett wrote:
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.
Not really ... the 1035 limits apply to the A-label
-- Mark Andrews, ISC 1 Seymour St., Dundas Valley, NSW 2117, Australia PHONE: +61 2 9871 4742 INTERNET: marka@isc.org