<s>
An	O
emoji	B-Protocol
domain	I-Protocol
is	O
a	O
domain	O
name	O
with	O
one	O
or	O
more	O
emoji	B-Application
in	O
it	O
,	O
for	O
example	O
😉	O
..	O
</s>
<s>
With	O
the	O
exception	O
of	O
the	O
information	O
emoji	B-Application
(	O
)	O
,	O
the	O
trademark	O
emoji	B-Application
(	O
)	O
and	O
the	O
"	O
m	O
"	O
emoji	B-Application
(	O
)	O
,	O
for	O
an	O
emoji	B-Application
to	O
work	O
as	O
a	O
domain	O
name	O
,	O
it	O
must	O
be	O
converted	O
into	O
so-called	O
"	O
Punycode	B-General_Concept
"	O
.	O
</s>
<s>
Punycode	B-General_Concept
is	O
a	O
character	O
encoding	O
method	O
used	O
for	O
internationalized	B-Language
domain	I-Language
names	I-Language
(	O
IDNs	B-Language
)	O
.	O
</s>
<s>
The	O
ASCII	B-Protocol
representation	O
starts	O
with	O
the	O
prefix	O
"	O
xn--	B-Language
"	O
and	O
is	O
followed	O
by	O
the	O
emoji-containing	O
domain	O
name	O
encoded	O
as	O
Punycode	B-General_Concept
,	O
for	O
example	O
"	O
xn--i-7iq	O
"	O
is	O
"	O
i	O
❤	O
"	O
when	O
converted	O
back	O
to	O
Unicode	O
.	O
</s>
<s>
Each	O
emoji	B-Application
has	O
a	O
unique	O
Punycode	B-General_Concept
representation	O
.	O
</s>
<s>
There	O
are	O
several	O
generators	O
on	O
the	O
Internet	O
that	O
allow	O
one	O
to	O
convert	O
emoji	B-Application
to	O
Punycode	B-General_Concept
and	O
back	O
.	O
</s>
<s>
,	O
there	O
are	O
11	O
top-level	O
domains	O
for	O
which	O
emoji	B-Protocol
domain	I-Protocol
registration	O
is	O
possible	O
:	O
.cf	O
,	O
.fm	B-Protocol
,	O
.ga	B-General_Concept
,	O
.gq	O
,	O
.kz	O
,	O
.ml	O
,	O
.st	O
,	O
.tk	O
,	O
.to	B-Protocol
,	O
.uz	O
,	O
and	O
.ws	O
;	O
as	O
well	O
as	O
14	O
second-level	B-Protocol
domains	I-Protocol
:	O
.radio.am	B-General_Concept
,	O
.radio.fm	B-Protocol
,	O
.co.il	B-General_Concept
,	O
.org.il	B-General_Concept
,	O
.com.kz	O
,	O
.org.kz	O
,	O
.biz.ua	B-General_Concept
,	O
.co.ua	B-General_Concept
,	O
.pp.ua	B-General_Concept
,	O
.co.uz	O
,	O
.com.uz	O
,	O
.com.ws	O
,	O
.net.ws	O
,	O
and	O
.org.ws	O
.	O
</s>
<s>
The	O
registration	O
of	O
an	O
emoji	B-Protocol
domain	I-Protocol
can	O
be	O
more	O
difficult	O
than	O
with	O
normal	O
domain	O
names	O
using	O
only	O
ASCII	B-Protocol
characters	I-Protocol
,	O
since	O
it	O
is	O
sometimes	O
not	O
possible	O
to	O
enter	O
emoji	B-Application
into	O
the	O
online	O
registration	O
forms	O
of	O
domain	B-Application
name	I-Application
registrars	I-Application
,	O
and	O
instead	O
the	O
Punycode	B-General_Concept
representation	O
must	O
be	O
entered	O
.	O
</s>
<s>
The	O
availability	O
of	O
an	O
emoji	B-Protocol
domain	I-Protocol
can	O
be	O
verified	O
by	O
using	O
an	O
emoji	B-Protocol
domain	I-Protocol
search	O
engine	O
or	O
by	O
checking	O
the	O
WHOIS	B-Protocol
data	O
of	O
the	O
punycoded	O
domain	O
.	O
</s>
<s>
At	O
least	O
four	O
emoji	B-Protocol
domains	I-Protocol
were	O
created	O
on	O
April	O
19	O
,	O
2001	O
:	O
(	O
xn--84h.com	O
)	O
,	O
♨️	O
.com	O
(	O
xn--j6h.com	O
)	O
,	O
♨️	O
.net	O
(	O
xn--j6h.net	O
)	O
,	O
and	O
☮️	O
.com	O
(	O
xn--v4h.com	O
)	O
.	O
</s>
<s>
Cabel	O
Sasser	O
of	O
Panic	O
created	O
💩	O
.la	O
(	O
xn--ls8h.la	O
)	O
,	O
"	O
The	O
World	O
's	O
First	O
Emoji	B-Protocol
Domain	I-Protocol
"	O
,	O
on	O
April	O
13	O
,	O
2011	O
.	O
</s>
<s>
In	O
February	O
2015	O
,	O
Coca-Cola	O
used	O
a	O
domain	O
name	O
containing	O
a	O
smiley	O
emoji	B-Application
in	O
an	O
advertising	O
campaign	O
aimed	O
at	O
mobile	O
users	O
in	O
Puerto	O
Rico	O
.	O
</s>
<s>
A	O
2018	O
survey	O
of	O
the	O
.ws	O
TLD	O
recorded	O
approximately	O
25,000	O
registered	O
emoji	B-Protocol
domains	I-Protocol
.	O
</s>
<s>
On	O
June	O
26	O
,	O
2020	O
,	O
an	O
online	O
collective	O
called	O
It	O
Is	O
What	O
It	O
Is	O
employed	O
the	O
👁️👄👁️	O
.fm	B-Protocol
(	O
xn--mp8hai.fm	O
)	O
emoji	B-Protocol
domain	I-Protocol
to	O
raise	O
money	O
for	O
various	O
social	O
justice	O
causes	O
.	O
</s>
<s>
The	O
viral	O
campaign	O
,	O
which	O
relied	O
on	O
people	O
's	O
fear	O
of	O
missing	O
out	O
,	O
caused	O
thousands	O
of	O
Twitter	B-Application
users	O
to	O
post	O
both	O
the	O
emoji	B-Protocol
domain	I-Protocol
and	O
the	O
phrase	O
"	O
It	O
Is	O
What	O
It	O
Is	O
"	O
in	O
hopes	O
of	O
getting	O
access	O
to	O
a	O
rumored	O
exclusive	O
social	O
network	O
.	O
</s>
<s>
Support	O
among	O
domain	B-Application
name	I-Application
registrars	I-Application
for	O
emoji	B-Protocol
domains	I-Protocol
is	O
limited	O
.	O
</s>
<s>
It	O
has	O
been	O
speculated	O
that	O
emoji	B-Protocol
domains	I-Protocol
,	O
especially	O
on	O
mobile	O
devices	O
,	O
may	O
be	O
used	O
to	O
lure	O
victims	O
into	O
phishing	O
scams	O
.	O
</s>
<s>
Another	O
problem	O
is	O
that	O
emojis	B-Application
can	O
look	O
different	O
depending	O
on	O
the	O
operating	O
system	O
,	O
applications	O
,	O
and	O
fonts	O
used	O
.	O
</s>
<s>
Not	O
all	O
browsers	O
support	O
emoji	B-Protocol
domains	I-Protocol
.	O
</s>
<s>
On	O
Google	B-Application
Chrome	I-Application
and	O
Firefox	B-Application
,	O
emoji	B-Application
display	O
as	O
Punycode	B-General_Concept
in	O
the	O
address	O
bar	O
.	O
</s>
<s>
In	O
Safari	B-Application
,	O
on	O
the	O
other	O
hand	O
,	O
emoji	B-Application
are	O
visible	O
in	O
the	O
address	O
bar	O
.	O
</s>
<s>
Emoji	B-Protocol
domains	I-Protocol
are	O
also	O
visible	O
in	O
Google	O
and	O
Bing	O
search	O
results	O
.	O
</s>
<s>
There	O
are	O
also	O
issues	O
with	O
using	O
emoji	B-Protocol
domains	I-Protocol
in	O
social	O
media	O
.	O
</s>
<s>
While	O
they	O
are	O
well	O
supported	O
on	O
Twitter	B-Application
and	O
LinkedIn	B-Application
,	O
Facebook	B-Application
and	O
Instagram	B-Application
have	O
imposed	O
serious	O
restrictions	O
.	O
</s>
<s>
At	O
present	O
,	O
only	O
Punycode	B-General_Concept
encoding	O
is	O
advised	O
in	O
e-mail	O
addresses	O
,	O
e.g.	O
</s>
<s>
Emoji	B-Application
subdomains	B-Protocol
are	O
like	O
normal	O
subdomains	B-Protocol
,	O
except	O
that	O
they	O
begin	O
with	O
emoji	B-Application
.	O
</s>
<s>
Emoji	B-Application
subdomains	B-Protocol
are	O
possible	O
with	O
many	O
popular	O
TLDs	O
,	O
including	O
.com	O
.	O
</s>
<s>
As	O
with	O
any	O
other	O
emoji	B-Protocol
domain	I-Protocol
,	O
emoji	B-Application
subdomains	B-Protocol
have	O
to	O
be	O
converted	O
into	O
Punycode	B-General_Concept
and	O
can	O
then	O
be	O
used	O
as	O
regular	O
subdomains	B-Protocol
.	O
</s>
<s>
This	O
allows	O
a	O
wide	O
scope	O
of	O
emoji	B-Protocol
domains	I-Protocol
outside	O
of	O
ccTLDs	O
.	O
</s>
