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="20170714000140" timestamp="2017-07-14T00:01:40Z" ns="0" title="Contribution" />
        <page value="20170714001158" timestamp="2017-07-14T00:11:58Z" ns="0" title="Hardware" />
        <page value="20171109030757" timestamp="2017-11-09T03:07:57Z" ns="0" title="Notes" />
        <page value="20190906065234" timestamp="2019-09-06T06:52:34Z" ns="0" title="Main Page" />
        <page value="20190906065655" timestamp="2019-09-06T06:56:55Z" ns="0" title="Tunnels" />
        <page value="20190910092915" timestamp="2019-09-10T09:29:15Z" ns="0" title="Туннелирование UDP трафика между Windows хостом и удаленным Linux сервером из приватной сети" />
        <page value="20190910093940" timestamp="2019-09-10T09:39:40Z" ns="0" title="Yui" />
        <page value="20190910094603" timestamp="2019-09-10T09:46:03Z" ns="0" title="Network Performance" />
        <page value="20190910134909" timestamp="2019-09-10T13:49:09Z" ns="0" title="Genrietta" />
        <page value="20190910134950" timestamp="2019-09-10T13:49:50Z" ns="0" title="Raspberry Pi" />
      </results>
    </querypage>
  </query>
</api>