Quad9 vs. Control D

Quad9 provides a free service that replaces the typical DNS settings offered by your Internet Service Provider or corporate network. Each time your device performs an online action that involves DNS—something that happens frequently—Quad9 successfully prevents access to dangerous domain names by leveraging a regularly updated threat database. This proactive approach safeguards your computers, smartphones, and IoT devices from various threats, including malware, phishing schemes, spyware, and botnets, while also boosting system performance and protecting your privacy. The Quad9 DNS service is overseen by the Quad9 Foundation, headquartered in Switzerland, which is committed to promoting a safer and more resilient Internet for all users. Additionally, when you use Quad9, your IP address remains unrecorded in their systems, providing an extra layer of privacy. This dedication to user security and anonymity not only makes Quad9 a strong option for individuals but also for organizations seeking enhanced online protection. Ultimately, Quad9 stands out as a reliable choice for those who prioritize both safety and privacy in their internet experience.

Control D is a versatile DNS filtering and traffic redirection service that utilizes advanced Secure DNS protocols such as DNS-over-HTTPS, DNS-over-TLS, and DNS-over-QUIC, while also accommodating traditional DNS. With Control D, users can effectively eliminate harmful threats, restrict various types of undesirable content across the network—including advertisements, trackers, IoT data, adult material, social media, and more—while also redirecting traffic through transparent proxies and monitoring network activities and usage patterns at a client-specific level. Consider it your own personalized Authoritative DNS resolver for the entire Internet, providing you with detailed control over which domains are allowed to be resolved, redirected, or blocked. This capability not only enhances security but also empowers users to tailor their online experience according to their preferences.