Mullvad shuts down public encrypted DNS servers and sponsors Quad9 instead

Mullvad is discontinuing its public encrypted DNS service, which it has operated since 2022. The service was redundant for VPN users, as Mullvad’s internal DNS already handles queries securely. Outside the VPN, it primarily served Mullvad Browser users and the general public as a privacy tool. The decision to shut it down reflects a strategic shift toward supporting Quad9, a foundation specializing in privacy-focused DNS services.

The migration affects two distinct user groups. Mullvad Browser users with default DNS settings will transition automatically to Quad9, requiring no action. However, users who customized their DNS settings or manually configured Mullvad’s servers on iOS, macOS, or other platforms must update their configurations before the November deadline. Failure to do so will result in DNS resolution failures.

Mullvad’s rationale for the shutdown centers on efficiency and specialization. Running a public DNS service is resource-intensive, and Quad9 is positioned as the leader in the field. By redirecting resources to financially support Quad9, Mullvad avoids duplicating efforts while still providing users with a privacy-focused alternative. This move may signal a broader trend of consolidation in privacy infrastructure.

The change highlights trade-offs in decentralized versus centralized privacy services. While Mullvad’s DNS offered a niche option, Quad9’s scale and specialization may provide better resilience and performance. However, users who relied on Mullvad’s specific DNS features (e.g., ad-blocking variants) will need to evaluate whether Quad9’s offerings meet their needs or if they must seek alternatives.