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For what it's worth to those following, investing or thinking of, in emoji domains -
http://domainnamewire.com/2017/05/27/icann-security-group-warns-emoji-domain-names/Emoji domain names have received some press over that last year thanks, in part, to .ws allowing registrations of emoji domain names.
Now, the ICANN Security and Stability Advisory Committee (SSAC) has published a report (pdf) warning against the use of these domain names.
The brief report notes that emoji in domain names are not allowed under the Internationalized Domain Names in Applications (IDNA) standard. They aren’t universally accepted and do not work across all devices.
They can also be difficult to decipher. Many emoji look similar to each other and some emoji can be “glued” together using a special zero width joiner (ZWJ) code point.
This creates a major problem:
The whole point of an identifier is to specify something unambiguously—this thing, as distinct from all other things. To a user, a single unmodified emoji might look exactly the same as its “glued together” counterpart, and systems that do not support emoji composition using a ZWJ will display the individual components of a “glued together” emoji as a sequence of separate emoji, with results that may visually be very different from what was intended. This is acceptable for interpersonal communication, particularly when it is augmented by shared context, but it is not acceptable for Internet identifiers, particularly DNS root labels that must be unambiguously resolved independent of any context.
.mobi
