Standardizing on IDNA 2003 in the URL Standard

John Levine johnl at
Thu Jan 16 06:31:41 CET 2014

>Aà.com has been registered.

Not really.  The A-label is, and if you convert that
into Unicode, it's aà.com, not Aà.com.

As Andrew noted, a lot of software helpfully does ASCII case
conversions even where you might not expect or want them to.


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