Writing Ad Blocker Test Results: 85% Blocked (33/39) — Google Ads, Analytics & Tracking Leaks Identified | Test Report — October 11, 2026 #4159

Prerequisites

• I verified that this is not a filter list issue. Report any issues with filter lists or broken website functionality in the uAssets issue tracker.
• This is NOT a YouTube, Facebook or Twitch report. These sites MUST be reported by clicking their respective links.
• This is not a support issue or a question. For support, questions, or help, visit /r/uBlockOrigin.
• I performed a cursory search of the issue tracker to avoid opening a duplicate issue.
• The issue is not present after disabling uBO in the browser.
• I checked the documentation to understand that the issue I am reporting is not normal behavior.

I tried to reproduce the issue when...

• uBO is the only extension.
• uBO uses default lists and settings.
• using a new, unmodified browser profile.

Description

On Firefox 157.0.1, uBlock Origin 1.75.0

Ad Blocker Test: find-extensions.com/tools/adblock-test/
Run: 2026-10-11 15:13 UTC
Score: 33 of 39 blocked (85%). Good blocking.
Your blocker filters both network requests and page elements, which is how a full content blocker should behave.

Display ads: 6/8
NOT blocked Google AdSense (pagead2.googlesyndication.com)
NOT blocked Google Ad Manager (GPT) (securepubads.g.doubleclick.net)
blocked DoubleClick ad server (ad.doubleclick.net)
blocked Google Ads conversion tag (www.googleadservices.com)
blocked Amazon Publisher Services (c.amazon-adsystem.com)
blocked Criteo (static.criteo.net)
blocked Outbrain (widgets.outbrain.com)
blocked Microsoft Advertising (UET) (bat.bing.com)
Fix: Ad scripts got through. Check the blocker is switched on for this site and that its main ad list (EasyList or the default ads list) is enabled. DNS blockers need a list that covers doubleclick.net and googlesyndication.com.

Analytics: 5/7
NOT blocked Google Analytics (www.google-analytics.com)
NOT blocked Google tag (gtag.js) (www.googletagmanager.com)
blocked Microsoft Clarity (www.clarity.ms)
blocked Yandex Metrica (mc.yandex.ru)
blocked Mixpanel (cdn.mxpnl.com)
blocked Amplitude (cdn.amplitude.com)
blocked WordPress.com Stats (stats.wp.com)
Fix: Analytics loaded. Many ad lists skip analytics on purpose. Enable a privacy list such as EasyPrivacy, or your blocker's tracker-blocking option.

Social trackers: 7/8
blocked Meta Pixel (connect.facebook.net)
blocked TikTok Pixel (analytics.tiktok.com)
blocked LinkedIn Insight Tag (snap.licdn.com)
blocked LinkedIn conversion pixel (px.ads.linkedin.com)
NOT blocked X (Twitter) pixel (static.ads-twitter.com)
blocked Pinterest Tag (s.pinimg.com)
blocked Snap Pixel (sc-static.net)
blocked Reddit Pixel (www.redditstatic.com)
Fix: Social pixels loaded. These are tracking, not ads, so they live in privacy lists. Enable EasyPrivacy (or your DNS provider's tracker list); in Brave, try Aggressive mode.

Error & session monitoring: 6/6
blocked Sentry (browser.sentry-cdn.com)
blocked New Relic (js-agent.newrelic.com)
blocked Bugsnag (d2wy8f7a9ursnm.cloudfront.net)
blocked FullStory (session replay) (edge.fullstory.com)
blocked LogRocket (session replay) (cdn.logrocket.io)
blocked Smartlook (session replay) (web-sdk.smartlook.com)

Cosmetic filtering: 9/10
hidden Test ad box (#ad_banner)
hidden Test ad box (#google_ads)
NOT hidden Test ad box (#adsbox)
hidden Test ad box (#ad-slot)
hidden Test ad box (.ad-slot)
hidden Test ad box (.ad-unit)
hidden Test ad box (.google-ad)
hidden Test ad box (.sponsored-ad)
hidden Test ad box (.ad_banner)
hidden Test ad box (ins.adsbygoogle)
Fix: Ad boxes stayed visible. DNS blockers can't hide page elements at all. In uBlock Origin Lite, set this site to Complete mode (generic hiding is off in Basic and Optimal). In Brave, Standard mode only hides third-party ad elements; Aggressive hides these too.

from
https://d3ward.com/adblock

script_ads : false
script_pagead : false

Amazon => n° tests => 4
Google Ads => n° tests => 4
Doubleclick.net => n° tests => 5
Adcolony => n° tests => 4
Media.net => n° tests => 3
Ads => Total n° tests => 20

Google Analytics => n° tests => 4
Hotjar => n° tests => 7
MouseFlow => n° tests => 7
FreshWorks => n° tests => 3
Luckyorange => n° tests => 8
Stats WP Plugin => n° tests => 1
Analytics => Total n° tests => 30

Bugsnag => n° tests => 4
Sentry => n° tests => 2
Error Trackers => Total n° tests => 6

Facebook => n° tests => 2
Twitter => n° tests => 2
LinkedIn => n° tests => 2
Pinterest => n° tests => 4
Reddit => n° tests => 2
YouTube => n° tests => 1
TikTok => n° tests => 7
Social Trackers => Total n° tests => 20

Yahoo => n° tests => 10
Yandex => n° tests => 6
Unity => n° tests => 4
Mix => Total n° tests => 20

Realme => n° tests => 4
Xiaomi => n° tests => 7
Oppo => n° tests => 4
Huawei => n° tests => 6
OnePlus => n° tests => 2
Samsung => n° tests => 5
Apple => n° tests => 7
OEMs => Total n° tests => 35

cosmetic_static_ad : true

cosmetic_dynamic_ad : false

adtago.s3.amazonaws.com - not blocked
advice-ads.s3.amazonaws.com - not blocked
an.facebook.com - blocked
ads.tiktok.com - blocked
offerwall.yandex.net - blocked
auction.unityads.unity3d.com - blocked
webview.unityads.unity3d.com - blocked
config.unityads.unity3d.com - blocked
adserver.unityads.unity3d.com - blocked
bdapi-ads.realmemobile.com - blocked
bdapi-in-ads.realmemobile.com - blocked
adsfs.oppomobile.com - blocked
adx.ads.oppomobile.com - blocked
ck.ads.oppomobile.com - blocked
data.ads.oppomobile.com - blocked
iadsdk.apple.com - blocked
pagead2.googlesyndication.com - not blocked
adservice.google.com - not blocked
log.fc.yahoo.com - blocked
pagead2.googleadservices.com - not blocked
afs.googlesyndication.com - not blocked
stats.g.doubleclick.net - not blocked
ad.doubleclick.net - not blocked
static.doubleclick.net - not blocked
m.doubleclick.net - not blocked
mediavisor.doubleclick.net - not blocked
ads30.adcolony.com - not blocked
adc3-launch.adcolony.com - not blocked
events3alt.adcolony.com - not blocked
wd.adcolony.com - not blocked
static.media.net - not blocked
media.net - not blocked
adservetx.media.net - not blocked
analytics.google.com - not blocked
click.googleanalytics.com - not blocked
google-analytics.com - not blocked
ssl.google-analytics.com - not blocked
adm.hotjar.com - not blocked
identify.hotjar.com - not blocked
insights.hotjar.com - not blocked
script.hotjar.com - not blocked
surveys.hotjar.com - not blocked
careers.hotjar.com - not blocked
events.hotjar.io - not blocked
mouseflow.com - not blocked
cdn.mouseflow.com - not blocked
o2.mouseflow.com - not blocked
gtm.mouseflow.com - not blocked
api.mouseflow.com - not blocked
tools.mouseflow.com - not blocked
cdn-test.mouseflow.com - not blocked
freshmarketer.com - not blocked
claritybt.freshmarketer.com - not blocked
fwtracks.freshmarketer.com - not blocked
luckyorange.com - not blocked
api.luckyorange.com - not blocked
realtime.luckyorange.com - not blocked
cdn.luckyorange.com - not blocked
w1.luckyorange.com - not blocked
upload.luckyorange.net - not blocked
cs.luckyorange.net - not blocked
settings.luckyorange.net - not blocked
stats.wp.com - not blocked
notify.bugsnag.com - not blocked
sessions.bugsnag.com - not blocked
api.bugsnag.com - not blocked
app.bugsnag.com - not blocked
browser.sentry-cdn.com - not blocked
app.getsentry.com - not blocked
pixel.facebook.com - not blocked
static.ads-twitter.com - not blocked
ads.linkedin.com - not blocked
analytics.pointdrive.linkedin.com - not blocked
ads.pinterest.com - not blocked
log.pinterest.com - not blocked
analytics.pinterest.com - not blocked
trk.pinterest.com - not blocked
events.reddit.com - not blocked
events.redditmedia.com - not blocked
ads.youtube.com - not blocked
analytics.tiktok.com - not blocked
analytics-sg.tiktok.com - not blocked
ads.yahoo.com - not blocked
analytics.yahoo.com - not blocked
geo.yahoo.com - not blocked
udc.yahoo.com - not blocked
partnerads.ysm.yahoo.com - not blocked
extmaps-api.yandex.net - not blocked
adfox.yandex.ru - not blocked
api.ad.xiaomi.com - not blocked
sdkconfig.ad.xiaomi.com - not blocked
sdkconfig.ad.intl.xiaomi.com - not blocked
metrics.data.hicloud.com - not blocked
metrics2.data.hicloud.com - not blocked
logservice.hicloud.com - not blocked
logservice1.hicloud.com - not blocked
logbak.hicloud.com - not blocked
click.oneplus.cn - not blocked
open.oneplus.net - not blocked
samsungads.com - not blocked
smetrics.samsung.com - not blocked
nmetrics.samsung.com - not blocked
samsung-com.112.2o7.net - not blocked
analytics-api.samsunghealthcn.com - not blocked
metrics.icloud.com - not blocked
metrics.mzstatic.com - not blocked
analytics.query.yahoo.com - not blocked
analyticsengine.s3.amazonaws.com - not blocked
udcm.yahoo.com - not blocked
books-analytics-events.apple.com - blocked
weather-analytics-events.apple.com - blocked
notes-analytics-events.apple.com - blocked
analytics.s3.amazonaws.com - not blocked
iot-eu-logser.realme.com - not blocked
log.byteoversea.com - not blocked
api-adservices.apple.com - not blocked
gemini.yahoo.com - not blocked
grs.hicloud.com - not blocked
metrika.yandex.ru - not blocked
appmetrica.yandex.ru - not blocked
tracking.rus.miui.com - not blocked
adfstat.yandex.ru - not blocked
adtech.yahooinc.com - not blocked
iot-logser.realme.com - not blocked
data.mistat.rus.xiaomi.com - not blocked
data.mistat.india.xiaomi.com - not blocked
data.mistat.xiaomi.com - not blocked
ads-api.twitter.com - not blocked
business-api.tiktok.com - not blocked
ads-api.tiktok.com - not blocked
ads-sg.tiktok.com - not blocked

Total : 135
Blocked : 19
Not Blocked : 116

A specific URL where the issue occurs.

test

Steps to Reproduce

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Expected behavior

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Troubleshooting information

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