How to get domain name only using javascript?

Question

I want to get domain name only using javascript. Ex

vn.search.yahoo.com -> yahoo
vn.search.yahoo.com.vn -> yahoo
sub1.sub2.sub3.abcdef.co.uk -> abcd         


        

Answer 1

var docdomain = document.domain.split('.');
var dom1 = "";
if (typeof (docdomain[docdomain.length - 2]) != 'undefined') dom1 = docdomain[docdomain.length - 2] + '.';
var domain = dom1 + docdomain[docdomain.length - 1];
console.log(domain);

//without subdomains