You are looking at the HTML representation of the XML format.
HTML is good for debugging, but is unsuitable for application use.
Specify the format parameter to change the output format.
To see the non HTML representation of the XML format, set format=xml.
See the complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allpages apcontinue="IHerbOpt:_Начните_продажу_БАДов_оптом" />
  </query-continue>
  <query>
    <allpages>
      <p pageid="9816" ns="0" title="Banda Casino" />
      <p pageid="9211" ns="0" title="CasinoOnline" />
      <p pageid="9813" ns="0" title="Casino 1Go" />
      <p pageid="9819" ns="0" title="Casino Starda" />
      <p pageid="5623" ns="0" title="Cerrahi-aletler" />
      <p pageid="9592" ns="0" title="Cовременные технологии отделки" />
      <p pageid="8130" ns="0" title="Daily Day: увлекательные публикации на разные темы!" />
      <p pageid="9620" ns="0" title="Enter: Бытовая Техника" />
      <p pageid="7532" ns="0" title="Fan1x.jpg" />
      <p pageid="9282" ns="0" title="GLOBAL" />
    </allpages>
  </query>
</api>