Articles
Short reads on privacy, tracking and phone security — each one anchored in a verifiable source.
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Optimizely: What It Is and How It Affects Your Privacy
Understand Optimizely, an A/B testing platform that tracks users, and why privacy blockers target it.
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Branch.io: What It Is and Why You Should Block It
Branch.io is a deep linking and attribution company. Learn how it works, what it does with your data, and why you should block it.
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InMobi: What It Is and Why We Block This Domain
InMobi is a mobile advertising platform that tracks users across apps. Learn how it collects data and why we block it.
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AppsFlyer: How the app tracker exposes your data
AppsFlyer is a data broker powering app tracking. Learn the risks and how to block it.
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Flurry: What It Is and Why Block It
Learn about Flurry, Yahoo's analytics and ad platform, and why you should block it on your phone.
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What is mopub.com and why block it
MoPub, AppLovin's ad network, tracks users. Learn how it works and why blocking it matters.
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AppLovin: Domain Explained and Why It's Blocked
AppLovin is a major mobile ad company. Learn what it does with your data and why privacy tools block applovin.com.
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Media.net: What It Is and Why We Block Its Trackers
Learn about media.net, a contextual ad network, its data collection, and why privacy tools block it.
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AddThis: The Tracker You Didn't Know About
Learn what AddThis was, how it collected data, and why blocking it is crucial for your privacy.
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How to block gambling and adult content with PIN in hado99
Enable gambling and porn filters in hado99 with PIN protection. Step-by-step activation, limits, and PIN recovery details.
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How to block ads on Android without root with hado99
Practical guide to block ads and trackers on Android using hado99, no root needed, via local VpnService and encrypted DNS.
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Understanding quantserve.com and Why Privacy Tools Block It
Learn what quantserve.com is, who operates it, how it collects data, and why it's blocked by privacy tools.
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rubiconproject.com: what it is and why it’s on blocklists
Learn about the role of rubiconproject.com in programmatic advertising, its data practices, and the limits of DNS blocking.
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Mixpanel: What It Is and Why Block It
Mixpanel is an event-based analytics platform. Understand how it works, the 2025 security incident, and the limits of DNS blocking.
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Chartbeat: What It Is and How It Tracks Your Browsing
Understand what Chartbeat is, who operates it, how it collects browsing data, and why ad blockers block it.
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BlueKai: What It Is and Why You Should Block It
Learn about bluekai.com, how it tracks your browsing, and why blocking it helps protect your privacy.
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What is adnxs.com and why you should block it
adnxs.com is the domain of Microsoft's advertising platform Xandr. Learn how it tracks you and how to protect yourself.
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ScorecardResearch: What It Is and Why It's Blocked
Understand the scorecardresearch.com domain, operated by Comscore, and why ad blockers block it.
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Taboola: What It Is and Why Block It
Learn about Taboola, its data practices, and the reasons blocking it improves your privacy.
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Outbrain: What It Is and Privacy Implications
Outbrain is a native advertising platform that tracks browsing data to show recommendations. Learn why ad blockers target it.
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DoubleClick: The tracker that became a block target
DoubleClick is a Google-owned advertising domain that tracks users. Privacy tools block it to limit data collection.
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16% of my phone's traffic was tracking
I turned on a DNS filter on an ordinary Android phone and counted one session: 613 queries, 98 blocked. Where that shows up, and what you can do.
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What is Criteo and why block this domain?
Understand how Criteo, an ad company based on tracking, operates and why privacy tools block its domain.