Quad9

Quad9 is a free and public DNS service that replaces your default ISP or enterprise Domain Name Server (DNS) configuration, providing a safer and more robust internet experience. With Quad9, you can enjoy enhanced security and privacy features, including blocking of malicious host names, protection against malware, phishing, and botnets, and improved performance. The service is operated by the Swiss-based Quad9 Foundation and is available for free, with no sign-up or account data required. Quad9's technical implementation includes a secure network of servers around the globe, using threat intelligence from leading cybersecurity companies to provide real-time protection. The service also prioritizes user privacy, with no logging of IP addresses and GDPR-compliant design. By using Quad9, individuals and organizations can protect themselves against online threats, prevent ransomware attacks, and safeguard their personal data. With its unique combination of security, privacy, and free access, Quad9 is an essential tool for anyone looking to enhance their online safety and security.