SonicWall DNS Filtering Service for TZ370W, 4-Year | Security Subscription

Stop threats at the DNS layer and give TZ370W environments a cleaner first line of defense. This 4-year SonicWall DNS filtering service helps block access to malicious, suspicious, and policy-violating domains before a session is established, reducing the chance of user-driven compromise and unnecessary traffic to risky sites. For teams managing distributed users or branch firewalls, DNS filtering adds a practical control point that is easy to align with acceptable-use policies. It helps security and IT teams enforce browsing rules, limit exposure to known bad destinations, and maintain a more predictable web access posture without requiring additional hardware. The value is in precision: filtering at the domain lookup stage can reduce noise, improve response time during incidents, and support a layered security strategy around the TZ370W. For organizations that need dependable coverage over multiple years, this subscription extends protection and policy control with a service model designed for ongoing operations.