ONLINE ADS>> Cookie crumbs

Kenneth C. Jenks (mindseye_at_tale.com)
Tue, 10 Jun 1997 00:18:39 -0500

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Denman Maroney wrote:
>The article by Whit Andrews in Webweek, to which your AdBytes newsletter
>provided a link, says in part,
>
>"Cookies, a system through which individual users may be uniquely identified
>by Web sites, initially were touted as accessible only by the Web sites that
>issued them. The passage of time showed that networks of objects on
>disparate Web sites could access the same cookie, a technical loophole that
>ad servers exploit to improve ad targeting. "
>
>I never heard this before. Is it true?

Yes, it's possible for the servers to share cookies with inter-server
communication. Your server can't ask the client for a cookie that my server
placed on the client, but your server can ask my server what cookie my
server placed on the client. See the distinction? So cooperating servers
can share information from cookies. It's tricky, but it works.

-- Ken Jenks, Editor-in-chief, Mind's Eye Fiction
http://tale.com/ -- The First Web Publisher
MindsEye_at_tale.com

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