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="20160524030816" timestamp="2016-05-24T03:08:16Z" ns="0" title="Main Page" />
        <page value="20191112111207" timestamp="2019-11-12T11:12:07Z" ns="0" title="Asmodan Anthrax" />
        <page value="20191113002115" timestamp="2019-11-13T00:21:15Z" ns="0" title="Quin Daske" />
        <page value="20191113002708" timestamp="2019-11-13T00:27:08Z" ns="0" title="Rondirai Ghune" />
        <page value="20191113123832" timestamp="2019-11-13T12:38:32Z" ns="0" title="Rondrumar Blitzsplitter" />
        <page value="20191113145436" timestamp="2019-11-13T14:54:36Z" ns="0" title="Debero ya Spinola" />
        <page value="20191113145631" timestamp="2019-11-13T14:56:31Z" ns="0" title="Orgen Svenson" />
        <page value="20191113151304" timestamp="2019-11-13T15:13:04Z" ns="0" title="Karra Waldkind" />
        <page value="20191113160107" timestamp="2019-11-13T16:01:07Z" ns="0" title="Blitzsplitter" />
        <page value="20191113172312" timestamp="2019-11-13T17:23:12Z" ns="0" title="Gunnar Njördson" />
      </results>
    </querypage>
  </query>
</api>