Same URL issue, different problem

Rasqual Twilight oid at
Thu Apr 27 20:04:08 UTC 2006

On 4/27/06, Steven Roussey wrote:
> We are doing everything in UTF-8 for our next few site launches, and want 
> be able to support international domain names and unicoded user names 
> their own subdomain or url directory).
> I remember there being issues with browsers being tricked by similar
> *looking* domain names. How do we deal with this when we use URLs as
> identifiers? Surely someone has already dealt with it, so I just need a
> heads up on what to do.
> Thanks,
> -steve--
You may find the following article interesting

IDNs are normalized to an ASCII-only form you can use to identify the 
domain name. They begin with "xn--".
Relevant RFCs are #3490-2 (the "IDN standards") and #3454.

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