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>
    <alllinks>
      <l ns="0" title="Kako izraditi bazu podataka (i korisnike), te pristupiti istoj?" />
      <l ns="0" title="Kako izraditi dodatni FTP račun?" />
      <l ns="0" title="Kako izraditi novi e-mail?" />
      <l ns="0" title="Koji je postupak za provjeru transfera domena?" />
      <l ns="0" title="Konfiguracija za čitanje e-maila preko webmaila?" />
      <l ns="0" title="Test page aaa" />
      <l ns="0" title="Što je to tajni (autorizacijski) kod (domain (transfer) secret or authorization (auth) code) i kako ga njega?" />
    </alllinks>
  </query>
</api>