[UA-discuss] [UA-International] IDN-as-punycode-encoded-label in Baidu search engine results

Tan Tanaka, Dennis dtantanaka at verisign.com
Wed Dec 2 15:39:15 UTC 2015


Thanks for the clarification Andrew.

-----Original Message-----
From: ua-discuss-bounces at icann.org [mailto:ua-discuss-bounces at icann.org] On Behalf Of Andrew Sullivan
Sent: Wednesday, December 02, 2015 10:38 AM
To: ua-discuss at icann.org
Subject: Re: [UA-discuss] [UA-International] IDN-as-punycode-encoded-label in Baidu search engine results

On Wed, Dec 02, 2015 at 03:02:06PM +0000, Tan Tanaka, Dennis wrote:
> I think you may be onto something wrt developers (i.e. implemeters) being fixed in IDNA2003 + TR46.
> 

If it's TR46, it's not IDNA2003, it's IDNA2008 with TR46.  TR46 is supposed to be a transition specification that, among other things, maps away the incompatibilities between 2003 and 2008.  Unfortunately, since it has no sunset mechanism, it's making the problem worse, not better.  I can't say for sure why UTC thinks it is an improvement.

> “fass.de”. Interestingly, IE didn’t recognize the punycode-encoded 
> form of the IDN.

_This_ suggests it might be IDNA2003-only, because under 2003 the ß simply had no punycode-encoded version (they weren't A-labels then, because the definition wasn't 1:1).

A

--
Andrew Sullivan
ajs at anvilwalrusden.com


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