AW: AW: AW: sharp s (Eszett)

William Tan dready at
Tue Mar 18 08:00:41 CET 2008

On Tue, Mar 18, 2008 at 2:56 AM, Patrik Fältström <patrik at> wrote:
> On 18 mar 2008, at 02.41, William Tan wrote:
>  > However, because the character is "resolvable"
>  > under IDNA2003, it seems (at least to me personally) to be
>  > unacceptable to take it away from the registrant (though IDNA2003 gave
>  > it for free.)
>  No, it is not resolvable. It is mapped to "ss" and "ss" is resolved.
>  You can NOT have ß registered in DNS in IDNA2003, and we have exactly
>  the same rule in IDNA200X.
>  Do not mix up mapping with resolvability.

I didn't mean it in the literal sense. For lack of a better word, I
quoted it. Perhaps "usable" would be a better word. My point is that
users today are able to create URIs with ß and get to a web site. If
we made ß a distinct character in IDNA200X and registries disallow its
registration, those URIs will no longer work (not even if the
registrant wants to pay money to make them work.)


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