Detection
Detection
How AntiAdBlock Core spots every blocker, from uBlock Origin to MV3 uBOL.
8 published guides · See all guides →
Detection guides
8 published guides- Detection8 min read
How ad blockers bypass detection scripts: and what publishers can do
Ad blockers do not just block ads, they also block the scripts that detect them. Here is how they evade publisher-side detection, and what evasion-resistant detection looks like.
Read guide - Detection8 min read
How to detect ad blockers with JavaScript in 2026
Bait divs, dummy ad scripts, fetch probes and AdSense checks are the four classic ways to detect an ad blocker in JavaScript. Here is how each works, why it breaks, and what survives Manifest V3.
Read guide - Detection9 min read
Detect AdBlock with JavaScript: Code Snippets and Why They Fall Short
A practical JavaScript adblock detection tutorial covering the bait-div method, fetch-based probes, and MV3 blind spots, plus when a managed solution makes more sense than rolling your own.
Read guide - Detection12 min read
Anti-adblock script: what it is and how to add one to your site
An anti-adblock script detects when a visitor is blocking your ads and prompts them to allow ads, so you keep the revenue. Here is how an antiadblock script works and how to add one safely.
Read guide - Detection8 min read
Anti-adblock script 2026: what changed after Manifest V3
The anti-adblock script landscape changed fundamentally with Manifest V3. Understanding what your detection script now needs to do, and why classic approaches fall short, is essential for any publisher relying on ad revenue.
Read guide - Detection8 min read
Anti-adblock detection accuracy: how to read a 99% claim
Every vendor advertises near-perfect accuracy. This guide breaks down what detection accuracy really measures and how to judge a vendor's number.
Read guide - Detection8 min read
Manifest V3 impact on ad blockers in 2026: what publishers lose and how to recover
Manifest V3 reshaped ad blocking in Chrome, but it did not end it. Here is what actually changed and what it means for publisher revenue.
Read guide - Detection9 min read
How to detect uBlock Origin Lite after Manifest V3
uBlock Origin Lite is a Manifest V3 blocker that breaks the assumptions classic anti-adblock scripts rely on. Here is what changed and how to detect it.
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