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>
    <querypage qpoffset="10" />
  </query-continue>
  <query>
    <querypage name="Ancientpages">
      <results>
        <page value="20150609204428" timestamp="2015-06-09T20:44:28Z" ns="0" title="Vorzüge &amp; Schwächen" />
        <page value="20160717222156" timestamp="2016-07-17T22:21:56Z" ns="0" title="Hilfe für Admin &amp; Autoren" />
        <page value="20160821183028" timestamp="2016-08-21T18:30:28Z" ns="0" title="Protokoll Spielerbesprechung 2012/06" />
        <page value="20160821183119" timestamp="2016-08-21T18:31:19Z" ns="0" title="Protokoll Spielerbesprechung 2013/03" />
        <page value="20170607110900" timestamp="2017-06-07T11:09:00Z" ns="0" title="Action Card" />
        <page value="20170618100243" timestamp="2017-06-18T10:02:43Z" ns="0" title="Haftungsausschluss" />
        <page value="20170623211944" timestamp="2017-06-23T21:19:44Z" ns="0" title="Mythos der Spielwelt" />
        <page value="20170701153922" timestamp="2017-07-01T15:39:22Z" ns="0" title="Regelwerk: Übersicht der Neuerungen" />
        <page value="20180304130702" timestamp="2018-03-04T13:07:02Z" ns="0" title="Literatur zur Spielwelt" />
        <page value="20180304151408" timestamp="2018-03-04T15:14:08Z" ns="0" title="Info - Schminke, Make-Up, Kunstblut" />
      </results>
    </querypage>
  </query>
</api>