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<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">Assuming that this is about 6lab about content statistics. A couple of points:<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><span style="mso-list:Ignore">1)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">It only counts web access and we know that other types of traffic exist on the Internet<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><span style="mso-list:Ignore">2)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">It is based on the per country Alexa list, e.g. for Belgium:
<a href="http://www.alexa.com/topsites/countries;0/BE">http://www.alexa.com/topsites/countries;0/BE</a> This is the list of visited web sites by viewers located in the country. E.g., no wonder that the top-10 Belgian sites are the Google, Youtube, Facebook
and Yahoo!<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><span style="mso-list:Ignore">3)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">We collect the top-500 of those web sites and assign a weight based on the ranking, this is more magic than science here to select the exponential
law parameters... IMHO we have put too much weigh on the top-10<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><span style="mso-list:Ignore">4)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">Then the usual trick of DNS + connecting over HTTP. Which in some cases is tricky as well... A response code of 200 then this is fine... but
a “page not found” is also (for fbcdn.net which does not have any public home page) but for “service temp unavailable” or “unsupported method”... We currently say that any response code received OVER IPv6 is good.<o:p></o:p></span></p>
<p class="MsoListParagraph" style="text-indent:-18.0pt;mso-list:l0 level1 lfo1"><![if !supportLists]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><span style="mso-list:Ignore">5)<span style="font:7.0pt "Times New Roman"">
</span></span></span><![endif]><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">Then we sum up the weights of the ‘good’ and ‘bad’ sites<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">BTW, you may always contact
<a href="mailto:6stats-feeback@cisco.com">6stats-feeback@cisco.com</a> for more discussion (I took the liberty to add this alias in cc)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">Hope this helps<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D">-éric<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Comic Sans MS";color:#1F497D"><o:p> </o:p></span></p>
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<p class="MsoNormal"><b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span lang="EN-US" style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> ipv6-ops-bounces+evyncke=cisco.com@lists.cluenet.de [mailto:ipv6-ops-bounces+evyncke=cisco.com@lists.cluenet.de]
<b>On Behalf Of </b>Lorenzo Colitti<br>
<b>Sent:</b> lundi 28 janvier 2013 22:39<br>
<b>To:</b> Tim Chown<br>
<b>Cc:</b> IPv6 Ops list<br>
<b>Subject:</b> Re: Dual stack statistics?<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p>On 28 Jan 2013 23:14, "Tim Chown" <<a href="mailto:tjc@ecs.soton.ac.uk">tjc@ecs.soton.ac.uk</a>> wrote:<br>
> based on what a typical home user does, 50% of that content (Google, FB, YouTube etc) is available via IPv6.<o:p></o:p></p>
<p>Does anyone know where they get this data from? Figuring out which websites are dual-stack is easy (just ask the DNS), but how do they know which websites users visit?<o:p></o:p></p>
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