You are looking at the HTML representation of the XML format.
HTML is good for debugging, but probably is not suitable for your application.
See complete documentation, or API help for more information. 
<?xml version="1.0"?>
<api>
  <query-continue>
    <allpages gapfrom="Technical Reference/terms/OpenSim SwRegionHandshake" />
  </query-continue>
  <query>
    <pages>
      <page pageid="1593" ns="0" title="Technical Reference/OpenSim Archive Region Format" touched="2016-11-27T00:32:00Z" lastrevid="21968" counter="2229" length="30" redirect="" />
      <page pageid="1549" ns="0" title="Technical Reference/Terms/Definitions" touched="2020-09-25T21:45:51Z" lastrevid="26127" counter="1585" length="39" redirect="" />
      <page pageid="1537" ns="0" title="Technical Reference/terms" touched="2020-10-19T19:32:22Z" lastrevid="49441" counter="52251" length="13447" />
      <page pageid="1592" ns="0" title="Technical Reference/terms/OAR format 0.1" touched="2012-03-04T06:45:50Z" lastrevid="13668" counter="1723" length="28" redirect="" />
    </pages>
  </query>
</api>