no, you haven't missed anything. the entities , , and  all encode ASCII control characters. i don't think that this string can be turned into a navigable URL using only generic conversions. my guess is that the URL in the form is converted with JavaScript or something to allow to browser to use it as a FORM target.

i did a couple more conversions and got a bit more intelligible stuff out. here are the other conversions i ran:

$URL =~ s/&/&/g;

# numeric entities
$URL =~ s/&#(\d+);/pack('c', $1)/ge;

# hex escapes
$URL =~ s/%(\d{2})/pack('c', $1)/ge;

# 'decimal' IP
$URL =~ s/(\d{5,})/join('.', unpack('C4', pack('N', $1)))/ge;
[download]

the result was this (after running it through 'od -c'):

0000   h   t   t   p   :   /   /   w   w   w   .   d   n   s 020 002
0020 005 005 005 020 002 020 005 020 020 020 005 005 020 002 020 020
0040 002 020 020 002   m   a   g   i   c   s   i   t   e   .   n   e
0060   t   &   6   4   .   1   7   6   .   4   5   .   4   4   @   6
0100   4   .   1   7   6   .   4   5   .   4   3   &   6   3   .   9
0120   6   .   2   .   2   3   7   @   2   0   8   .   6   2   .   1
0140   4   .   2   4   8   ?   4   .   1   2   8   .   1   7   0   .
0160   1   2   2   &   p   r   o   x   y   =   6   3   .   9   6   .
0200   2   .   2   1   8   ?   6   4   .   1   7   6   .   4   5   .
0220   4   3   @   6   3   .   9   6   .   2   .   2   3   7   ?   w
0240   w   w   .   s   u   2   5   3   7   .   t   w   |   w   w   w
0260   . 020 002 005 005 005 020 020 020 005 005 020 002 020 020 002
0300 020 020 002   .   h   k   ?   /   p   r   o   x   y   =   6   3
0320   .   9   6   .   2   .   2   2   7   @   1   3   1   .   1   0
0340   3   .   2   2   9   .   3   7   :   2   0   3   0   @   1   3
0360   1   .   1   0   3   .   2   2   9   .   5   ?   /   @   6   4
0400   .   1   7   6   .   1   2   2   .   1   4   :   8   0   8   0
0420   @   6   4   .   1   7   6   .   1   1   3   .   8   8   @ 037
0440 036   &   #   ! 036   # 037   $   #  \n
0452
[download]

the main points of interest are the apparent IP addresses:

• 64.176.45.44
• 64.176.45.43
• 63.96.2.237
• 208.62.14.248
• 4.128.170.122
• 63.96.2.218
• 131.103.229.37:2030
• 131.103.229.5
• 64.176.122.14:8080
• 64.176.113.88

after checking a few of these out with reverse DNS and whois.arin.net, i've come to the conclusion that it's all just random garbage. i don't think that the alleged IP addresses are owned by affiliated entities, and none of them seem to be porn sites, so i think it's just someone mucking about.

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