SonicWall DNS Filtering Service for TZ570W, 6-Year | Security, Subscription

Stop threats at the DNS layer and keep policy enforcement close to the user. This 6-year SonicWall DNS filtering service for the TZ570W adds domain-level control that helps block access to known malicious, risky, or non-compliant destinations before a connection is established. For IT teams managing branch firewalls, DNS filtering reduces the burden on downstream controls by filtering requests early in the traffic path. That means fewer unwanted connections, less exposure to phishing and malware infrastructure, and clearer governance over web access. It is a practical fit for organizations that need consistent protection without adding appliance complexity. Because this is a long-duration subscription, it also supports predictable planning and fewer renewal events over the service life. For environments where uptime, user productivity, and policy consistency matter, DNS filtering adds a focused layer of control that complements the TZ570W security stack.