Knowledge base

Adblock guides and troubleshooting

Understand your test results, fix weak protection, and learn how browser extensions, VPN ad blockers, and DNS filters handle ads and trackers.

Run the adblock test

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Choose a guide

Start with the basics or jump directly to the tool or result you need to troubleshoot.

Beginner guide

Is My Adblock Working?

Confirm your blocker is active and understand what blocked, reachable, and mixed results mean.

4 min readRead guide → DNS blocking

DNS Adblock Test

Check Pi-hole, NextDNS, VPNs, private DNS, and router-level filtering.

5 min readRead guide → Browser extension

uBlock Origin Test

Test filter lists, tracker blocking, permissions, and cosmetic filtering.

4 min readRead guide → Browser, app and DNS

AdGuard Test

Compare browser extension, app-level protection, and AdGuard DNS.

4 min readRead guide → Browser protection

Brave Adblock Test

Check Brave Shields and compare standard versus aggressive blocking.

4 min readRead guide → Troubleshooting

Why Is My Adblock Not Working?

Fix disabled protection, acceptable ads, missing lists, and site exceptions.

5 min readRead guide → Result guide

Adblock Test Score Explained

Learn what blocked, reachable, mixed, and 100% results actually prove.

3 min readRead guide →