Removes tracking params, disables link ping, unwraps redirectors, and prevents Facebook tracking without blocking the site.
// ==UserScript==
// @name De-Tracker (Anti-Tracking + Facebook Safe)
// @namespace https://greasyfork.org/en/users/1258004-jake-shue
// @version 2.2
// @description Removes tracking params, disables link ping, unwraps redirectors, and prevents Facebook tracking without blocking the site.
// @author you
// @match *://*/*
// @run-at document-start
// @grant none
// @license none
// ==/UserScript==
(function() {
'use strict';
const TRACK_PARAMS = new Set([
'utm_source','utm_medium','utm_campaign','utm_term','utm_content','utm_id','utm_name','utm_reader','utm_referrer',
'ga_source','ga_medium','ga_campaign','ga_content','ga_term',
'gclid','dclid','gbraid','wbraid','fbclid','twclid','ttclid','yclid','msclkid',
'mc_eid','mc_cid','_hsenc','_hsmi','vero_conv','vero_id','mkt_tok','oly_anon_id','oly_enc_id',
'pk_campaign','pk_kwd','pk_source','pk_medium',
'igshid','spm','si','ref','ref_src','ref_url','src','sc_channel','sc_campaign','sc_content','sc_medium',
'ved','ei','usg','oq','uact','source','rlz','sxsrf',
'campaign','campaignId','tracking','track','trk','ncid','ncid_src'
]);
const REDIRECT_PARAM_CANDIDATES = [
'url','u','dest','destination','redir','redirect','redirect_url','redirect_uri',
'r','to','target','q','link','l','out','o','external','next','continue','goto','href','request','RU'
];
const REDIRECT_PATTERNS = [
{hostRe: /(^|\.)google\.[a-z.]+$/i, pathRe: /^\/(url|imgres|aclk|amp\/s|amp\/t)/i},
{hostRe: /(^|\.)facebook\.com$/i, pathRe: /^\/l\.php$/i},
{hostRe: /(^|\.)l\.facebook\.com$/i, pathRe: /^\//},
{hostRe: /(^|\.)out\.reddit\.com$/i, pathRe: /^\//},
{hostRe: /(^|\.)link\.medium\.com$/i, pathRe: /^\//},
{hostRe: /(^|\.)steamcommunity\.com$/i, pathRe: /^\/linkfilter\/$/i},
{hostRe: /(^|\.)youtube\.com$/i, pathRe: /^\/redirect$/i},
{hostRe: /(^|\.)r\.t\.umblr\.com$/i, pathRe: /^\//},
{hostRe: /(^|\.)news\.yahoo\.com$/i, pathRe: /^\//},
{hostRe: /(^|\.)safelinks\.protection\.outlook\.com$/i, pathRe: /^\//},
{hostRe: /(^|\.)lnkd\.in$/i, pathRe: /^\//}
];
function safeDecode(str) {
try { return decodeURIComponent(str); } catch { return str; }
}
function stripTrackParams(u) {
const url = new URL(u, location.href);
for (const key of [...url.searchParams.keys()]) {
if (TRACK_PARAMS.has(key)) url.searchParams.delete(key);
}
if (url.hash && url.hash.includes('=')) {
const hash = url.hash.replace(/^#/, '');
const sp = new URLSearchParams(hash);
let changed = false;
for (const key of [...sp.keys()]) {
if (TRACK_PARAMS.has(key)) {
sp.delete(key);
changed = true;
}
}
if (changed) {
const newHash = sp.toString();
url.hash = newHash ? '#' + newHash : '';
}
}
return url.toString();
}
function looksLikeRedirector(u) {
const url = new URL(u, location.href);
return REDIRECT_PATTERNS.some(p => p.hostRe.test(url.hostname) && p.pathRe.test(url.pathname));
}
function extractRedirectTarget(u) {
const url = new URL(u, location.href);
for (const key of REDIRECT_PARAM_CANDIDATES) {
const v = url.searchParams.get(key);
if (v && /^https?:\/\//i.test(v)) return safeDecode(v);
}
for (const [key, value] of url.searchParams.entries()) {
if (!value || value.length < 8) continue;
if (/^[A-Za-z0-9+/_-]+=*$/.test(value)) {
try {
const decoded = atob(value.replace(/-/g, '+').replace(/_/g, '/'));
if (/^https?:\/\//i.test(decoded)) return decoded;
} catch {}
}
}
return null;
}
function cleanLinkHref(a) {
if (!a || !a.href) return;
if (!/^https?:/i.test(a.href)) return;
if (looksLikeRedirector(a.href)) {
const target = extractRedirectTarget(a.href);
if (target) a.href = target;
}
a.href = stripTrackParams(a.href);
if (a.hasAttribute('ping')) a.removeAttribute('ping');
['onmousedown','onclick','onmouseup'].forEach(k => {
if (a.hasAttribute(k)) a.removeAttribute(k);
});
['saferedirecturl','tracking','clicktrack','click_id'].forEach(k => {
const dk = 'data-' + k;
if (a.hasAttribute(dk)) a.removeAttribute(dk);
});
}
function cleanAllLinks(root=document) {
const links = root.querySelectorAll ? root.querySelectorAll('a[href]') : [];
for (const a of links) cleanLinkHref(a);
}
function cleanLocationBar() {
try {
const cleaned = stripTrackParams(location.href);
if (cleaned !== location.href) {
history.replaceState(history.state, '', cleaned);
}
} catch {}
}
function onPreClick(e) {
let el = e.target;
while (el && el !== document && !(el instanceof HTMLAnchorElement)) el = el.parentElement;
if (el && el instanceof HTMLAnchorElement) {
cleanLinkHref(el);
}
}
function onCopy(e) {
const sel = document.getSelection();
if (!sel) return;
const node = sel.anchorNode && sel.anchorNode.parentElement;
const a = node && node.closest && node.closest('a[href]');
if (a && /^https?:/i.test(a.href)) {
const cleaned = stripTrackParams(a.href);
try {
e.clipboardData.setData('text/plain', cleaned);
e.preventDefault();
} catch {}
}
}
function patchHistory() {
const origPush = history.pushState;
const origReplace = history.replaceState;
history.pushState = function(state, title, url) {
if (typeof url === 'string') url = stripTrackParams(new URL(url, location.href).toString());
const ret = origPush.apply(this, [state, title, url]);
queueMicrotask(cleanLocationBar);
return ret;
};
history.replaceState = function(state, title, url) {
if (typeof url === 'string') url = stripTrackParams(new URL(url, location.href).toString());
const ret = origReplace.apply(this, [state, title, url]);
queueMicrotask(cleanLocationBar);
return ret;
};
window.addEventListener('popstate', cleanLocationBar, true);
}
function startObserver() {
const obs = new MutationObserver(muts => {
for (const m of muts) {
if (m.type === 'childList') {
m.addedNodes.forEach(node => {
if (node && node.nodeType === 1) {
if (node.tagName === 'A') {
cleanLinkHref(node);
} else {
cleanAllLinks(node);
}
}
});
} else if (m.type === 'attributes' && m.target.tagName === 'A' && m.attributeName === 'href') {
cleanLinkHref(m.target);
}
}
});
obs.observe(document.documentElement || document, {
childList: true,
subtree: true,
attributes: true,
attributeFilter: ['href']
});
}
function init() {
patchHistory();
cleanLocationBar();
cleanAllLinks(document);
startObserver();
document.addEventListener('click', onPreClick, true);
document.addEventListener('auxclick', onPreClick, true);
document.addEventListener('copy', onCopy, true);
}
try { init(); } catch {}
if (document.readyState === 'loading') {
document.addEventListener('DOMContentLoaded', () => { try { init(); } catch {} }, { once: true });
}
})();