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Emoji domains get a 👎 from security panel

Kevin Murphy, May 30, 2017, 09:41:22 (UTC), Domain Tech

The use of emojis in domain names has been discouraged by ICANN’s Security and Stability Advisory Committee.

In a paper late last week, SSAC told ICANN that emojis — aka emoticons or smileys — lack standardization, are barred by the relevant domain name technical standards, and could cause user confusion.

Emoji domains, while technically possible, are not particularly prevalent on the internet right now.

They’re implicitly banned in gTLDs due to the contractual requirement to adhere to the IDNA2008 standard, which restricts internationalized domain names to actual spoken human languages, and the only ccTLD I’m aware of actively marketing the names is Samoa’s .ws.

There was a notable example of Coca Cola registering 😀.ws (xn--h28h.ws) for a billboard marketing campaign in Puerto Rico a couple of years ago, but that name has since expired and been registered by an Australian photographer.

The SSAC said that emoji use should be banned in TLDs and discouraged at the second level for several reasons.

Mainly, the problem is that while emojis are described in the Unicode standards, there’s no standardization across devices and applications as to how they are displayed.

A certain degree of creative flair is permitted, meaning a smiling face in one app may look unlike the technically same emoji in another app. On smaller screens and with smaller fonts, technically different emojis may look alike.

This could lead to confusion, which could lead to security problems, SSAC warns:

It is generally difficult for people to figure out how to specify exactly what happy face they are trying to produce, and different systems represent the same emoji with different code points. The shape and color of emoji can change while a user is viewing them, and the user has no way of knowing whether what they are seeing is what the sender intended. As a result, the user is less likely to reach the intended resource and may instead be tricked by a phishing site or other intentional misrepresentation.

SSAC added that it:

strongly discourages the registration of any domain name that includes emoji in any of its labels. The SSAC also advises registrants of domain names with emoji that such domains may not function consistently or may not be universally accessible as expected

The brief paper can be read here (pdf).

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