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Re: Alt-Svc Privacy Concerns

Ryan Hamilton <rch@google.com> Sun, 10 April 2016 04:10 UTC

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Date: Sat, 09 Apr 2016 21:04:34 -0700
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From: Ryan Hamilton <rch@google.com>
To: Phil Lello <phil@dunlop-lello.uk>
Cc: Patrick McManus <mcmanus@ducksong.com>, "ietf-http-wg@w3.org" <ietf-http-wg@w3.org>
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Subject: Re: Alt-Svc Privacy Concerns
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On Sat, Apr 9, 2016 at 10:41 AM, Phil Lello <phil@dunlop-lello.uk> wrote:

> Specifically, although I know that, for example, google.com and
> youtube.com, are tightly related, the average user might not. Over a TLS
> end-to-end connection, Alt-Svc seems to make it easy to track activities
> between domains without user knowledge or consent. Ditto for
> blog1.wordpress.com and blog2.wordpress.com.
>

​Cookies can already be set on wordpress.com which would apply to blog1 and
blog2 so isn't the tracking your are describing already possible?​

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