Pi-hole vs Cloudflare DNS: Privacy Comparison
Here we put Pi-hole head-to-head with Cloudflare DNS across the six privacy factors that matter most: their data collection practices, encryption implementation, third-party data sharing, user privacy controls, transparency, and historical track record. While both products address similar requirements, the philosophies they bring to protecting users diverge sharply. Our assessment finds that Pi-hole provides a noticeably better overall privacy experience, although neither service is without trade-offs that deserve a careful, detailed look.
The Quick Verdict
Here is the result of weighing both services across the dimensions that decide real-world privacy. Across the six privacy dimensions we score, Pi-hole finishes ahead of Cloudflare DNS, 40/60 to 34/60. 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: Pi-hole 5/10 versus Cloudflare DNS 4/10. Data Collection is where they come closest, a mere 1-point gap (5 vs 4 out of 10). The detailed walkthrough below shows the reasoning behind every score.
What Gets Collected
Every privacy assessment starts with data collection. How much a service gathers, stores, and processes about its users is what ultimately drives the privacy risk of using it. Pi-hole takes a leaner approach here, capturing only the data strictly required to make the service work. Its rival pulls in a wider net of information -- behavioral patterns, device identifiers, and usage analytics that go well past what the core features actually need. Our marks were Pi-hole 5/10 and Cloudflare DNS 4/10 in this area. What separates them is not merely how much is gathered but why it is gathered and whether it is truly needed.
Encryption Standards
Encryption protects user data both in transit and at rest, and the implementation quality varies dramatically between services. Pi-hole implements stronger encryption measures, including more robust protocols for data in transit and better protection for stored data. The specific encryption implementations differ in their coverage (which data is encrypted), their strength (which algorithms and key lengths are used), and whether end-to-end encryption is employed (preventing even the service provider from accessing user content). Pi-hole scored 6/10 while Cloudflare DNS scored 5/10 for encryption.
Third-Party Data Sharing
How services share data with third parties is a critical privacy dimension. This includes sharing with advertising networks, analytics providers, business partners, and in response to government requests. Pi-hole maintains more restrictive policies regarding third-party data access. The data sharing practices affect not just privacy but also the security of user information, as each additional party with access represents a potential breach vector. Scores: Pi-hole 7/10, Cloudflare DNS 6/10.
Controls You Can Actually Use
How much say people have over their own data depends on whether the privacy controls a service offers are both present and actually useful. That spans opt-out switches for data collection, the ability to download and delete information, fine-grained permission settings, and how simply users can act on the rights granted to them under relevant privacy regulations. Pi-hole delivers broader, easier-to-reach privacy controls. Scores: Pi-hole 8/10, Cloudflare DNS 7/10.
Openness About Data Practices
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. Pi-hole demonstrates stronger transparency overall. Clear, accessible privacy communication is essential for informed consent and trust. Scores: Pi-hole 9/10, Cloudflare DNS 8/10.
What Their History Reveals
The record of privacy incidents, regulatory run-ins, and how a service answers vulnerabilities offers context you cannot ignore. Pi-hole holds the stronger track record here, with a smaller count of incidents and a more responsible response to the problems that did surface. More often than not, what a service did in the past is the best guide to its future privacy conduct. Scores: Pi-hole 5/10, Cloudflare DNS 4/10.
The Final Verdict
When the full analysis is tallied, Pi-hole finishes at 40/60 and Cloudflare DNS at 34/60. On privacy grounds, the overall winner is Pi-hole. Both products meet similar functional needs, yet the winner brings a more privacy-respecting approach to the dimensions that carry the most weight. Still, perfection is off the table for any service, so no matter which you choose you should actively set up its privacy options. Our advice is to round out your pick with additional privacy tools, a VPN, DNS-level ad blocker, and privacy-focused browser, to assemble a thorough privacy posture. Should your threat model call for the strongest privacy possible, weigh whether an even more privacy-focused alternative exists in this category beyond the two compared here.