Multiple ifs in another if.

Multiple ifs in another if.

Hi guys,

I want to add different ifs to one parent if. 

If any of if's are met, then go and do the else.

Here is my code: 
        if (document.URL.indexOf("xxx.co.uk") != -1) { Site='xxx.co.uk' };
        if (document.URL.indexOf("xxx.de") != -1) { Site='xxx.de' };
        if (document.URL.indexOf("xxx.fr") != -1) { Site='xxx.fr' };
        if (document.URL.indexOf("xxx.it") != -1) { Site='xxx.it' };
        if (document.URL.indexOf("xxx.be") != -1) { Site='xxx.be' };
        if (document.URL.indexOf("xxx.nl") != -1) { Site='xxx.nl' };

And I want if any of these were captures give an else 
      site='mobile-app'

How should I go with it?

Thanks,