Not Woking Alexa SD

[DonPramis]

Belows are not working:

   $reviews    = $xml->xpath('//REVIEWS');
    $speed      = $xml->xpath('//SPEED');
    $links      = $xml->xpath('//LINKSIN');
    $category   = $xml->xpath('//CATS/CAT');
    $name       = $xml->xpath('//DMOZ/SITE');

[DonPramis]

For: http://data.alexa.com/data?cli=10&dat=snbamz&url=google.com

<RLS PREFIX="http://" more="0">
<RL HREF="www.yahoo.com/" TITLE="Yahoo!"/>
<RL HREF="www.ask.com/" TITLE="Ask.com"/>
<RL HREF="wikipedia.org/" TITLE="Wikipedia"/>
<RL HREF="www.yellowpages.com/" TITLE="YELLOWPAGES.com, Inc."/>
<RL HREF="www.yehey.com/" TITLE="Yehey"/>
<RL HREF="www.winamp.com/" TITLE="Winamp"/>
<RL HREF="www.whowhere.com/" TITLE="Lycos People Search"/>
<RL HREF="www.webcrawler.com/" TITLE="Webcrawler.com"/>
<RL HREF="www.vmware.com/" TITLE="VMware - Virtualization Software"/>
<RL HREF="www.vinden.nl/" TITLE="Vinden.nl"/>
</RLS>
<SD TITLE="A" FLAGS="" HOST="google.com">
<OWNER NAME="aa"/>
</SD>
<SD>
<POPULARITY URL="google.com/" TEXT="1" SOURCE="panel"/>
<REACH RANK="2"/>
<RANK DELTA="+0"/>
<COUNTRY CODE="US" NAME="United States" RANK="1"/>
</SD>
</ALEXA>```