Modern websites load ads asynchronously using background network requests. The script hijacks the browser's native fetch and XMLHttpRequest functions. If a website tries to call an external URL matching the adKeywords list, the script safely intercepts and kills the request. 3. DOM Mutation Observer

Note: In 2026, many experts still consider (or uBlock Origin Lite) to be the foundational defense against ads, while scripts act as the precision tools for edge cases like anti-adblock walls. 5. Troubleshooting & Maintenance

This is the most professional script available. It complements the AdGuard extension but works standalone in Tampermonkey. It specifically targets websites that use "scare screens" saying you must disable your adblocker. adblock script tampermonkey full

As advertising networks change their domain names and code signatures, your adKeywords and adSelectors lists will require occasional manual updating.

If you tell me which site is giving you trouble, I might be able to recommend a more targeted solution. Troubleshooting & Maintenance This is the most professional

: This module uses the MutationObserver API to watch for changes on the page. When a new node is added that matches our criteria, it can be instantly removed.

Run a real adblocker + optionally a Tampermonkey anti-anti-adblock script (like “AdGuard Popup Blocker” or “Bypass Anti-Adblock”) for tough sites. He hit save.

With a deep breath, Silas opened his Tampermonkey dashboard, clicked Add a new script , and pasted the massive block of code. He hit save.