It looks they are using UTF-8 starting from MSIE 5.5 or so, for all sites actually if you search using their input form.
On Thu Jun 20 11:18:47 2002 -0700 Paul Deuter wrote:
>Is this strictly true? I think there are cases where the results are
>sent back ISO-8859-1. It would not surprise me if there was a more
>complex algorithm which tried to determine the requesting browser.
>I love UTF-8 but some older browsers do not tolerate it very well.
>From: Roozbeh Pournader [mailto:firstname.lastname@example.org]
>Sent: Thursday, June 20, 2002 9:40 AM
>To: Unicode List
>Subject: Google and Unicode
>Did anyone notice that Google now uses Unicode (UTF-8) in displaying the
>search results? No more of that 'This page contains Russian characters
-- ☻ Ričardas Čepas ☺
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