hit "random" link on ircz.de every 15 seconds

rando.js

// ==UserScript==
// @name         hit random every 15secs
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://ircz.de/p/*
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    window.setInterval(function(){
        location.href = 'https://ircz.de/random';
    },15000);
    // Your code here...
})();