Greasy Fork is available in English.
Inject udm=14 into Google search URLs only when safe
// ==UserScript==
// @name Google UDM Injector
// @namespace http://tampermonkey.net/
// @version 1.1
// @description Inject udm=14 into Google search URLs only when safe
// @match https://www.google.com/search*
// @run-at document-start
// ==/UserScript==
(function() {
'use strict';
const url = new URL(window.location.href);
const params = url.searchParams;
const hasUdm = params.has('udm');
const hasTbm = params.has('tbm');
// Only inject udm=14 if udm is missing AND tbm is missing
if (!hasUdm && !hasTbm) {
const q = params.get('q');
if (q) {
params.delete('q'); // Temporarily remove q
params.set('udm', '14'); // Add udm=14
params.set('q', q); // Re-add q
// Redirect to updated URL
window.location.replace(`${url.origin}${url.pathname}?${params.toString()}`);
}
}
})();