IP addresses and personal information (was Re: [LINK] Fwd: On Line Opinion - 16 February 2007)

[Irene Graham]

On Sat, 24 Feb 2007 07:46:53 +1100, rchirgwin at ozemail.com.au wrote:
[...]
> Irene,
>
> Without getting into the tit-for-tat over Hitwise's techniques, there
> are other approaches to Web stats which bother me more. 

There are also other approaches that bother me more.

>In particular,
> there's the pratcise of launching an invisible redirect using Port 443 -
>  that is, while the page is loading, you get flick-passed to an SSL
> session to the ad counting company.
>
> This, I presume, is to help distinguish 'unique visitors' - but how
> does the technique work?

Sorry, I'm not sure whether I know about that. Are you referring to things 
like dgmaustralia and imrworldwide? But my recollection is they run via 
javascript in the pages, so I guess that's not what you mean.

Irene