Cisco OpenDNS Home vs Zscaler Cloud Access Security Broker (CASB): 2026 Comparison

Cisco OpenDNS Home

Home users and small business operators who want network-level phishing and malware blocking without per-device agents should use Cisco OpenDNS Home, which intercepts threats at the DNS layer before they reach any connected device. The free tier covers DNS resolution with customizable content filtering and preconfigured adult blocking, making it cost-effective for households with multiple devices and limited IT overhead. Skip this if you need endpoint visibility into what users are actually doing on infected machines; Cisco OpenDNS Home stops the initial connection but doesn't detect compromise post-infection, leaving you blind to lateral movement or data exfiltration once malware lands.