Re: [DNSOP] Fwd: I-D Action:draft-pettersen-subtld-structure-04.txt

[Ray.Bellis at nominet.org.uk]

> What I am interested in is whether or not example.co.uk and co.uk are 
> administrated by different entities, and where the separation occur, and 
 
> that that change in administration signifies that any x.co.uk and 
y.co.uk 
> are not considered part of the same domain, but separate domains, and 
that 
> as a consequence a.x.co.uk, b.x.co.uk, and x.co.uk are in the same 
domain 
> and under the same administrator.
> 
> To put it in a different way: What the suggested specification file 
> distributes is the vertical boundary separating domains acting 
effectively 
> as TLDs (e.g. co.uk) and domains that are not acting as TLDs 
> (example.co.uk). I have been calling these TLD-like domains "subTLDs", 
but 
> others are calling them "Effective TLDs", "public suffixes" or 
> "registry-like domains", and yet others call a domain immediately below 
> such domains a "Base domain".

Yngve

It's not at all clear to me if your draft has any solution for the many 
unofficial "registry-like domains" that exist, particularly if your 
protocol expects each TLD to know about each and every such domain that 
might exist within its namespace.

For example, I happen to know that 'demon.co.uk' has a separate sub-domain 
for each customer, and should probably therefore be included in your list 
- it's "registry-like".  However there's a (large?) unknown number of 
similar domains that I don't know about.

kind regards,

Ray

-- 
Ray Bellis, MA(Oxon)
Senior Researcher in Advanced Projects, Nominet
e: ray at nominet.org.uk, t: +44 1865 332211


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