Is the ad-block test safe?

Yes. The tester uses synthetic elements, runs locally in your browser, and doesn't collect page content.

Why can scores vary between runs?

Browser version, device load, network conditions, filter freshness, and other extensions can affect results. Use a baseline and retest after each change.

Does strict mode always improve results?

Usually, but extremely strict settings can break site features. Tune gradually and retest.

Adblock Test - Benchmark Your Ad-Blocker Effectiveness

Run this free adblock test to see how tough your ad blocker really is. We try to inject hundreds of synthetic ads and trackers. If they fail to land, you score higher. Simple.

How the Ad-Block Tester Works

Configure Test

Customize test and select which ad categories to test

We Inject Synthetic Ads in Real-Time

Safe, disposable elements designed to mimic real ad patterns

Monitor & Benchmark

The tool attempts to inject ads, trackers, and video ads. Monitor the ads that slip past your setup

Get Comprehensive Report

Receive detailed results, performance grade, and personalized recommendations. Fewer successful injections = stronger defense = higher score

Why this method?

Real sites vary a lot. A controlled ad blocker test isolates your configuration so you can benchmark changes reliably.

Types of Ads & Trackers We Test

Our comprehensive ad blocker test evaluates your protection against 10 major ad categories across 19 verified networks. Real endpoints, real patterns, real results.

Display Ads

Banner ads, pop-ups, and sidebar placements from major networks

Programmatic Ads

Real-time bidding and automated ad exchanges

Contextual Ads

Content-targeted advertising based on page context

Native Ads

Sponsored content designed to blend with organic content

E-commerce Ads

Shopping ads, product placements, and affiliate networks

Mobile Ads

Mobile app ad networks and in-app advertising

Retargeting Ads

Behavioral tracking and remarketing campaigns

Audio Ads

Spotify and streaming audio advertising (3x weighted)

Video Ads

YouTube pre-roll, mid-roll, and video advertising (3x weighted)

Analytics & Trackers

Google Analytics, Facebook Pixel, and tracking scripts

Priority Testing: Audio Ads and Video Ads receive 3x weight in scoring because they're the most intrusive and hardest to block. A strong ad blocker must excel in these categories.

Ad Blocker Test: Your Score Explained

85 or Above (Excellent): Near-zero injection success. Your lists and modes are dialed in.
75-85 (Good): A few leaks. Minor tuning can push you higher.
65-75 (Fair): Noticeable gaps. Add core lists and tighten rules.
<65 (Needs Work): Many injections succeed. Start with the basics, then re-run the ad block tester.

Improve Your Ad-Blocking Score

Use Blockify ad blocker for comprehensive protection with automatic filter updates
Enable stricter blocking modes in Blockify for maximum protection
Keep your ad blocker updated with the latest protection rules
Disable conflicting extensions that modify pages
Re-run the ad-block test to validate each tweak with a quick retest

Compare, Benchmark & Share Results

Use our AdBlock Test tool to compare top ad blockers like Blockify across the same browser and site conditions. Save your score, screenshot the chart, or share a link with teammates. For ongoing tracking, keep testing regularly, and the updates keep getting tracked and logged with ease.

What Affects Your Ad-Block Test Results

Environment

Browser engine (Chromium/Firefox), CPU/RAM load, network latency

Configuration

Filter freshness, custom rules, strict/advanced modes

Extension Stack

Script blockers, privacy tools, and performance optimizers can interact, positively or negatively

Privacy, Safety, & Accuracy

We designed this ad-block tester to be safe by default:

Synthetic Only

We don't touch real ads or read the page's content

Local Execution

The test runs in your browser; we don't exfiltrate page data

No Trackers

Just controlled test elements to measure effectiveness

Accuracy tips: Close heavy tabs, pause unrelated extensions, ensure lists are updated, then re-run.

FAQ: Adblock Test & Troubleshooting

Is this ad-block test safe?

Yes. We use synthetic, disposable elements and don't collect page content.

Why do scores sometimes change between runs?

Minor system and network shifts, network request failures, background extensions, or filter updates can move the needle. Use a baseline and retest after one change at a time.

Can I use the ad-block tester on mobile?

Yes, if your mobile browser supports your blocker. Performance may differ from desktop.

Try Blockify

Want a tougher setup? Harden your stack with Blockify, refresh your lists, enable strict modes - then re-run the adblock test to see the lift.

Install Blockify for Chrome

Free extension • Instant setup • No account required