On Tue, 11 Nov 2008 04:17:02 +0100, Dean Anderson <[EMAIL PROTECTED]> wrote:

On Sun, 9 Nov 2008, Yngve N. Pettersen (Developer Opera Software ASA) wrote:

On Sun, 09 Nov 2008 00:30:54 +0100, Dean Anderson <[EMAIL PROTECTED]> wrote:
> The TLD's cannot provide this information, since they don't know it
> themselves.  What you are trying to do with 'crowdsourcing' is no
> different from early anti-spam efforts (that also failed). There is no
> reliable source of the information you seek outside the admin domains
> themselves. The TLDs aren't the same as the admin domains, and don't
> know if, say, bankamerica.com is the same as bankofamerica.com, nor if
> wachovia.com was bought by wellsfargo.com and so are now the same admin
> domain.

As an example, the dot-UK registry _ought_ to know that all second level
domains in the dot-UK hierarchy are registry-like, except (possibly)
parliament.uk and maybe a few others, and should be able to create a
specification for that. Similarly, the dot-US registory should be able to provide a list of all state.us, city.state.us, etc. registry-like domains.

You didn't read my message. the dot-UK registry only knows the domains
it registered; dot-uk doesn't know if a group of several domains are in
the same admin control. See the wachovia/bankofamerica example.  Dot-uk

I am not interested in cross-domain ownership. I do not care if opera.com and operasoftware.com have the same owner and administrator. None of the currently envisioned uses for this spec will allow communication between those types of domain anyway (unrelated: The W3C is working on an XHR spec that will permit cross-site communication using scripting), nor do they consider such domains to be the same.

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".

--
Sincerely,
Yngve N. Pettersen
********************************************************************
Senior Developer                     Email: [EMAIL PROTECTED]
Opera Software ASA                   http://www.opera.com/
Phone:  +47 24 16 42 60              Fax:    +47 24 16 40 01
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