JavaScript obtenga URL actual
var currentUrl = window.location.href;
Grepper
var currentUrl = window.location.href;
var url = window.location.href;
var domain = url.replace('http://','').replace('https://','').split(/[/?#]/)[0];
const url = 'https://www.mydomain.com/blog?search=hello&world';
const domain = (new URL(url)).hostname.replace('www.','');
window.location.hostname