3.3.3.3 is the primary recursive DNS server IP address operated by the , based in Switzerland. Unlike commercial DNS providers that monetize user data, Quad9 is a non-profit that exists solely to protect user privacy and block cyber threats.

Most DNS providers focus on speed. Quad9 focuses on . The 3.3.3.3 service maintains a constantly updated blocklist of malicious domains. Here is what it stops by default:

: In some localized network configurations, such as Huawei Cloud ISP lines , 3.3.3.3 may be returned as a specific destination IP for users in certain regions (e.g., North China) to optimize traffic routing.

But what exactly is DNS 3.3.3.3, who owns it, and should you be using it on your devices? This article dives into the origins, performance, and current status of this intriguing address. Who Owns the 3.3.3.3 IP Address?

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