Block ads
// ==UserScript==
// @name Block all ads
// @license MIT
// @namespace http://tampermonkey.net/
// @description Block ads
// @version 0.0.1
// @author an vu an
// @match *://*/*
// @grant none
// @run-at document-start
// ==/UserScript==
(function () {
'use strict';
// 🔗 Link thay thế (link an toàn hoặc rỗng)
const SAFE_LINK = 'https://youtu.be/NG9FSIJ5cio';
const FIXED_SELECTORS = [
'ins.adsbygoogle',
'.adsbygoogle',
'iframe[name^="google_ads_"]',
'div[id^="google_ads"]',
'.ad-slot',
'.ad-container',
'.adbanner',
'.advertisement',
'.sponsored',
'[data-ad]',
'[data-ad-client]',
'[data-ad-slot]',
'iframe[src*="ads."]',
'iframe[src*="doubleclick"]',
'iframe[src*="googlesyndication"]',
'iframe[src*="adservice"]'
];
const KEYWORDS_REGEX = [
/\bad\b/i,
/ads/i,
/advert/i,
/banner/i,
/sponsor/i,
/promoted/i,
/promo/i,
/doubleclick/i,
/googlesyndication/i,
/taboola/i,
/outbrain/i
];
const BLOCKED_SRC_KEYWORDS = [
'doubleclick', 'googlesyndication', 'adservice',
'adsystem', 'adsafeprotected', 'taboola',
'outbrain', 'pubmatic'
];
function replaceNodeLink(el) {
if (!el) return;
if (el.hasAttribute('href')) {
el.setAttribute('href', SAFE_LINK);
}
if (el.hasAttribute('src')) {
el.setAttribute('src', SAFE_LINK);
}
el.__ad_replaced = true;
}
function matchesKeyword(str) {
if (!str) return false;
return KEYWORDS_REGEX.some(rx => rx.test(str));
}
function shouldReplace(el) {
// 🚫 Không đụng tới YouTube player hoặc video
if (el.closest('#player, #movie_player, ytd-player')) return false;
if (el.tagName && el.tagName.toLowerCase() === 'video') return false;
// 🚫 Không đụng tới worksheet-preview-elements
if (el.closest('#worksheet-preview-elements')) return false;
const attrs = ['id', 'className', 'name', 'title', 'alt'];
for (const a of attrs) {
const val = el[a] || el.getAttribute?.(a) || '';
if (matchesKeyword(String(val))) return true;
}
if (el.dataset) {
for (const k in el.dataset) {
if (matchesKeyword(k) || matchesKeyword(String(el.dataset[k]))) return true;
}
}
const src = el.src || el.href || el.getAttribute?.('src') || el.getAttribute?.('href') || '';
if (matchesKeyword(String(src))) return true;
return false;
}
function scan(root = document) {
// fixed selectors
for (const sel of FIXED_SELECTORS) {
root.querySelectorAll(sel).forEach(el => replaceNodeLink(el));
}
root.querySelectorAll('body *').forEach(el => {
if (!el || el.__ad_replaced) return;
const tag = (el.tagName || '').toLowerCase();
if (['iframe', 'script', 'img', 'a'].includes(tag)) {
const src = el.src || el.getAttribute?.('src') || el.getAttribute?.('href') || '';
if (src) {
const s = src.toLowerCase();
for (const k of BLOCKED_SRC_KEYWORDS) {
if (s.includes(k)) {
replaceNodeLink(el);
return;
}
}
}
}
if (shouldReplace(el)) {
replaceNodeLink(el);
}
});
}
const observer = new MutationObserver(mutations => {
for (const mut of mutations) {
mut.addedNodes?.forEach(n => {
if (n.nodeType === 1) scan(n);
});
}
});
observer.observe(document.documentElement, { childList: true, subtree: true });
document.addEventListener('DOMContentLoaded', () => {
setTimeout(() => scan(document), 200);
});
// quét nhanh vài lần đầu
let fastRuns = 6;
const fast = setInterval(() => {
scan(document);
if (--fastRuns <= 0) {
clearInterval(fast);
setInterval(() => scan(document), 5000);
}
}, 500);
})();