| Feature | Cisco Umbrella | Zscaler (ZIA) | Palo Alto Prisma Access | |---------|----------------|----------------|--------------------------| | | DNS-first (fast) | Proxy-first (granular) | Proxy + DNS hybrid | | Category depth | 130+ | 150+ | 120+ | | AI risk scoring | Yes (NSD, DGA) | Yes (Deep learning) | Yes (ML) | | On-prem firewall integration | Tight (Cisco FTD) | Loose (via tunnels) | Native (PAN-OS) | | Off-network filtering | Roaming agent | Client or GRE/IPsec | GlobalProtect client |
| Feature | Cisco Umbrella | Zscaler (ZIA) | Palo Alto Prisma Access | |---------|----------------|----------------|--------------------------| | | DNS-first (fast) | Proxy-first (granular) | Proxy + DNS hybrid | | Category depth | 130+ | 150+ | 120+ | | AI risk scoring | Yes (NSD, DGA) | Yes (Deep learning) | Yes (ML) | | On-prem firewall integration | Tight (Cisco FTD) | Loose (via tunnels) | Native (PAN-OS) | | Off-network filtering | Roaming agent | Client or GRE/IPsec | GlobalProtect client |