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Proposed TLD usage 2012 2013<br />
_sip… 0% 0%<br />
_xmpp… 0% 0%<br />
mail at other than TLD 0% 0%<br />
.proposedTLD. only 0% 0%<br />
total 71% 70%<br />
Table 12—Proposed TLD usage as perc<strong>en</strong>tages across all roots<br />
5.4.1 SLD is an existing TLD<br />
Common examples of domain <strong>name</strong>s in this category are:<br />
<br />
<br />
.com.home.<br />
..home.<br />
in which is a two-letter country code (for example .uk. or .sg.).<br />
These appear to be examples of a valid domain <strong>name</strong> that has had a TLD app<strong>en</strong>ded<br />
(incorrectly)—for example, by a commercial off-the-shelf (COTS) router or cable modem used<br />
at home or in a small office.<br />
5.4.2 SLD is also a proposed TLD<br />
Common examples of domain <strong>name</strong>s in this category are:<br />
<br />
..corp.<br />
in which is the <strong>name</strong> of a company that matches a proposed TLD.<br />
These appear to be examples of an internal domain <strong>name</strong> being used (incorrectly) outside the<br />
administrative boundary of the company in which it is defined.<br />
5.4.3 SLD is a random 10-alphabetic-character string<br />
Oft<strong>en</strong> spotted near each other in the traces, examples of domain <strong>name</strong>s in this category are<br />
<br />
<br />
<br />
lfbviakqaw.home.<br />
mdqrerrefm.home.<br />
uprxbvqnxa.home.<br />
These domain <strong>name</strong>s comprise t<strong>en</strong> appar<strong>en</strong>tly random alphabetic characters for the SLD and a<br />
proposed TLD (oft<strong>en</strong>, but not only, .home.).<br />
Name Collision Study Report Page 48<br />
Version 1.5 2013.08.02
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