How to fetch a site name from URL in Javascript?

Try this:

url.href = "http://www.mysite.com/mypath/mypag";

url.protocol; // => "http:"
url.hostname; // => "example.com" // site name, you want

The window.document.location.href has the url of the page, and the window.document.location.hostname will have the sitename.

So,

console.log(window.document.location.hostname); // will log the sitename in the console

Easy.

window.location.hostname; //Domain name

$("title").text(); //Page name

and this too

var loc = window.location;

var filename = loc.pathname.split("/");
filename = filename[pathname.length-1];

alert("Domain: "+loc.hostname);
alert("Filename: "+filename);

You can abuse an anchor in order to get your desired data out of an URL. :D

function getDomain(url) {
  var anchor = document.createElement('a');
  anchor.setAttribute('href', url);

  return anchor.hostname;
}

console.log(getDomain('http://www.mysite.com/mypath/mypage'));
console.log(getDomain('http://mysite.com/mypath/mypage'));

http://jsfiddle.net/Js76M/

This one worked well for me:

urlString.split('/')[2]