Keep in mind the point of the article: It's impossible to do URL normalizing well. They've even missed two items that need normalizing (but they might be in the linked spec):

1) The order of the arguments in a GET:
.../script.cgi?a=b&c=d vs
.../script.cgi?c=d&a=b

2) The domain name:
example.com vs
example.com. vs
EXAMPLE.COM

Oh and IP addresses too:
10.0.0.1 vs
0x0A000001 vs
167772161

In reply to Re: Normalizing URLs by ikegami
in thread Normalizing URLs by Anonymous Monk

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