Our Ongoing Commitment to Privacy for the 1.1.1.1 Public DNS Resolver

Why It Matters

The reaffirmed privacy controls bolster user trust and set a benchmark for DNS providers, influencing enterprise security policies and regulatory scrutiny.

Key Takeaways

• Independent audit confirms unchanged privacy guarantees
• IP addresses deleted within 25 hours
• No sale or ad targeting of DNS data
• Only 0.05% traffic sampled for troubleshooting
• New platform underpins resolver, scaling privacy controls

Pulse Analysis

The Domain Name System (DNS) is the Internet’s address book, and any compromise can expose users to tracking, censorship, or cyber‑attacks. As bandwidth‑hungry applications and AI‑driven agents proliferate, demand for fast, reliable, and privacy‑first resolvers has surged. Cloudflare’s 1.1.1.1, often cited as the world’s fastest public DNS, occupies a strategic niche for both consumer browsers and enterprise networks seeking low‑latency name resolution without sacrificing data protection.

In 2024, Cloudflare subjected its resolver to a rigorous third‑party review by a Big 4 firm, the same auditor that evaluated the service in 2020. The examination validated three core promises: personal DNS queries are never sold or used for advertising, source IPs are anonymized and purged within 25 hours, and only a minuscule 0.05% of packets are captured for troubleshooting. By isolating the audit’s scope to privacy commitments, Cloudflare provided a laser‑focused assurance that its expanded platform—built on the new "Big Pineapple" infrastructure—maintains the same stringent controls despite increased scale and complexity.

For businesses, the audit’s findings serve as a de‑risking signal when selecting DNS providers, especially under tightening data‑privacy regulations such as GDPR and the California Consumer Privacy Act. Independent verification reduces reliance on self‑reported compliance and encourages industry peers to adopt similar transparency measures. As DNS traffic continues to feed analytics platforms like Cloudflare Radar, the company’s pledge not to merge query data with other identifiers reinforces a privacy‑by‑default model that could shape future standards for internet‑infrastructure services.