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="20150616142623" timestamp="2015-06-16T14:26:23Z" ns="0" title="Настройка номеров" />
        <page value="20160222183519" timestamp="2016-02-22T18:35:19Z" ns="0" title="Регистрация" />
        <page value="20160222185839" timestamp="2016-02-22T18:58:39Z" ns="0" title="Управление тарифом" />
        <page value="20160222190536" timestamp="2016-02-22T19:05:36Z" ns="0" title="Установка X-Lite" />
        <page value="20170327125907" timestamp="2017-03-27T12:59:07Z" ns="0" title="Правила набора" />
        <page value="20171117101153" timestamp="2017-11-17T10:11:53Z" ns="0" title="Возможные проблемы" />
        <page value="20200406105255" timestamp="2020-04-06T10:52:55Z" ns="0" title="Настройка Zoiper" />
        <page value="20201103071754" timestamp="2020-11-03T07:17:54Z" ns="0" title="Технические требования" />
        <page value="20201103075639" timestamp="2020-11-03T07:56:39Z" ns="0" title="Настройка Asterisk" />
        <page value="20230320054129" timestamp="2023-03-20T05:41:29Z" ns="0" title="Настройка GS Wave" />
      </results>
    </querypage>
  </query>
</api>