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>
    <protectedtitles>
      <pt ns="2" title="User:GregorioAwp" timestamp="2013-12-06T10:34:55Z" level="sysop" />
      <pt ns="0" title="Many Guidelines For Kids Bathtub Time Period Enjoyable When That Bit People Bedtime" timestamp="2013-12-06T10:34:50Z" level="sysop" />
      <pt ns="2" title="User:AllieGardiner" timestamp="2013-11-27T12:32:40Z" level="sysop" />
      <pt ns="0" title="Cash advance" timestamp="2013-11-16T22:38:08Z" level="sysop" />
      <pt ns="0" title="Manufactured To Measure Designer Jeans By Momotaro" timestamp="2013-11-03T21:39:26Z" level="sysop" />
      <pt ns="0" title="Its Payday Loans" timestamp="2013-10-14T17:01:41Z" level="sysop" />
      <pt ns="0" title="Payday loans" timestamp="2013-09-03T15:47:42Z" level="sysop" />
      <pt ns="2" title="User:SenaidaETTY" timestamp="2013-08-26T17:50:55Z" level="sysop" />
      <pt ns="0" title="Reverse phone" timestamp="2013-08-25T11:57:22Z" level="sysop" />
    </protectedtitles>
  </query>
</api>