Control D vs Google DNS: Privacy Comparison
This in-depth comparison weighs Control D against Google DNS along six decisive privacy dimensions: how data is collected, how encryption is implemented, how data is shared with third parties, what privacy controls users get, how transparent each service is, and what their historical track record looks like. The two cover much the same ground, yet they handle user privacy in very different ways. What our review shows is that Control D delivers a clearly stronger privacy experience on balance, even though each option has its own relative pluses and minuses that are worth examining closely.
How They Stack Up
Here is the result of weighing both services across the dimensions that decide real-world privacy. Across the six privacy dimensions we score, Control D finishes ahead of Google DNS, 43/60 to 37/60. That total reflects a privacy face-off in which one service is consistently the more privacy-respecting choice, even though both cover the same functional ground.
Most of the distance between these services opens up on Data Collection: Control D 8/10 versus Google DNS 7/10. Data Collection is where they come closest, a mere 1-point gap (8 vs 7 out of 10). Keep reading to see exactly how the gap was earned, category by category.
What Gets Collected
Data collection is the foundation of any privacy assessment. The extent to which a service collects, retains, and processes user data directly determines the privacy risks associated with its use. Control D demonstrates more restrained data collection practices, gathering only the minimum data necessary for service functionality. The other service collects a broader range of data including behavioral patterns, device identifiers, and usage analytics that extend beyond core service requirements. We scored Control D 8/10 and Google DNS 7/10 in this category. The difference reflects not just the volume of data collected but the purpose and necessity of that collection.
How Strong Is the Encryption
Encryption guards user data as it moves and while it sits at rest, and how well it is built differs enormously from one service to the next. Control D puts tougher encryption in place, with sturdier protocols shielding data in transit and stronger safeguards for what is stored. The two implementations part ways on coverage (which data actually gets encrypted), on strength (which algorithms and key lengths back it up), and on whether end-to-end encryption is in play (which keeps even the provider from reading user content). For encryption, Control D scored 9/10 while Google DNS scored 8/10.
Who Else Gets Your Data
One of the most important privacy questions is how freely a service passes data along to others. The list of recipients can run from advertising networks and analytics providers to business partners and government requests. Control D draws firmer limits around third-party access to user data. Such practices matter for security and not only privacy, because each new entity with access is another door through which a breach could occur. Scores: Control D 5/10, Google DNS 4/10.
Controls You Can Actually Use
The availability and effectiveness of user-facing privacy controls determine how much agency individuals have over their own data. This includes settings for data collection opt-out, download and deletion capabilities, granular permission controls, and the ease with which users can exercise their rights under applicable privacy regulations. Control D provides more comprehensive and accessible privacy controls. Scores: Control D 6/10, Google DNS 5/10.
Transparency
Transparency encompasses how clearly each service communicates its data practices. This includes the readability of privacy policies, the publication of transparency reports, responsiveness to privacy inquiries, and proactive communication about policy changes. Control D demonstrates stronger transparency overall. Clear, accessible privacy communication is essential for informed consent and trust. Scores: Control D 7/10, Google DNS 6/10.
Track Record Over Time
A service's history of privacy incidents, regulatory actions, and responses to vulnerabilities provides important context. Control D has a stronger historical record on privacy, with fewer incidents and more responsible handling of the issues that have arisen. Past behavior is often the best predictor of future privacy practices. Scores: Control D 8/10, Google DNS 7/10.
Overall Verdict
Adding everything up, our full analysis lands Control D at 43/60 and Google DNS at 37/60. For privacy, the overall winner is Control D. The two cover much the same functional ground, but the winner takes a more privacy-respecting stance across the dimensions that count for the most. Even so, no service is flawless, and whichever option you pick, you should always tune its privacy settings deliberately. We suggest pairing your choice with extra privacy tools, a VPN, DNS-level ad blocker, and privacy-focused browser, so you end up with a well-rounded privacy posture. And if your threat model demands the very highest level of privacy, it is worth asking whether an even more privacy-focused alternative exists in this category beyond the two compared here.