One click. No signup. No downloads. Hit the button to test ad blocking and watch live connection attempts. Get your final adblock score in seconds.

Fast baseline → change settings → retest | Works with all blockers (uBlock, Blockify, etc.)

How This Ad Block Tester Works

We run three simple steps to check your protection:

1. Detect Your Browser & Ad-blocking Setup

We check which browser engine you use (Chrome, Safari, or Firefox) to tailor the test for your setup.

2. Send Test Ad Requests

We fire real ad requests to ad servers from Google, Facebook, and other networks.

3. Check the Results

If your ad blocker stops the request, it's working as intended. If it gets through, we count it as a leak.

Types of Ads & Trackers We Test

A robust ad blocking setup must stop more than just visible banners. We audit 10 major ad formats across all popular ad networks.

Display & Banner Ads

Standard IAB sizes (Leaderboards, Skyscrapers) and static image injections (div.ad-banner).

Video Ads

Pre-roll and mid-roll ads from popular platforms like YouTube.

Audio Ads

Streaming audio ad injections (e.g., Spotify patterns).

Analytics & Invisible Trackers

1x1 invisible pixels and third-party scripts (Google Analytics, Hotjar, FB Pixel).

Programmatic Ads

Real-time bidding (RTB) and automated ad exchanges.

Contextual & Native Ads

"Recommended for you" widgets and "Chumbox" content disguised as navigation.

Pop-ups & Overlays

Intrusive modals that block content visibility.

E-commerce & Retargeting

Shopping placements and behavioral tracking scripts used for remarketing.

What Your Score Means

Higher scores mean better protection. But blocking too much can sometimes break websites. Here's what each range means:

85 - 100(Excellent)— Fortress Mode

Almost everything is blocked. Your ad blocker is working as intended, protecting you from 99% of ads and trackers.

What it means: Very little data leaks out. Note: Some websites may not work correctly at this level.

75 - 85(Good)— Standard Protection

Most ad networks are blocked, but a few invisible trackers got through.

What it means: You won't see most ads, but some tracking data may still leak. This is normal for default settings.

65 - 75(Fair)— Basic Protection

Some gaps in protection. You might see video ads or cookie pop-ups.

What it means: Your filter lists may be outdated, or you have 'acceptable ads' turned on.

Below 65(Needs Work)— Low Protection

Many ad networks got through. Your blocker may be disabled or misconfigured.

What it means: Your browsing is being tracked. We recommend fixing this right away.

How to Improve Your Score

Scoring below 85%? Here are three quick fixes:

1. Update Your Filter Lists

Open your ad blocker settings and update EasyList and EasyPrivacy to the latest versions.

2. Turn On Strict Mode

Enable strict blocking to catch more hidden trackers and sneaky ads.

3. Use Only One Ad Blocker

Running multiple blockers (like uBlock + AdBlock Plus) causes conflicts. Pick one for best results.

Want Higher Scores? Try Blockify

Blockify catches ads that other blockers miss. It works out of the box with no setup needed.

Add to Chrome - Free

Free extension • No setup • 85%+ average score • Learn more

What Affects Your Ad-Block Test Results?

Browser Engine

Chromium-based browsers are transitioning to Manifest V3, limiting rule counts. Gecko (Firefox) allows deeper interception.

CPU/RAM Load

Heavy system load can delay script execution, causing "False Passes" or timeouts.

Network Latency

Slow connections might time out a request before your blocker inspects it.

Adblock Test: Benchmark Your Ad Blocker's Effectiveness