URL normalization

[Poul-Henning Kamp]

In message <ujrbqqalgmo.fsf at cat.linpro.no>, Dag-Erling =?iso-8859-1?Q?Sm=F8rgra
v?= writes:
>12:14 < phk> Other detail:  It looks like Host: normalization might make sense
>             from a cache-size point of view:
>12:14 < phk>  358578.03 Host: www.vg.no
>12:14 < phk>   13655.51 Host: vg.no
>12:14 < phk>     145.80 Host:  www.vg.no
>12:14 < phk>      56.58 Host: www.vg.no.
>12:14 < phk>      55.67 Host: 193.69.165.21
>12:14 < phk>      37.25 Host: www.vg.no:80
>12:14 < phk>      23.52 Host:www.vg.no
>12:14 < phk>       4.69 Host: vg.no:80
>
>Not just from a cache-size point of view...  PURGE won't catch all
>copies of a page if we don't normalize the URL (or at least the host).

true.

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