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← Firewall / UTM / Network SecurityZscaler Cloud Firewall
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4.5

Vendors › Firewall / UTM / Network Security › Zscaler Cloud Firewall

Zscaler Cloud Firewall logo

Zscaler Cloud Firewall

Zscaler

Founded 2007·US·Public
4.5

Combined score

G2
4.5187
Gartner
4.5143

▪ Editorial verdict

Zscaler Cloud Firewall represents a fundamentally different architectural bet than the appliance-based vendors in this category: policy enforcement happens entirely in the cloud across 150 plus points of presence, applying consistently wherever a user connects from. This eliminates hardware sizing decisions and per-location configuration burden, and the Gartner Magic Quadrant Leader position reflects genuine validation at scale.

The honest reality is this is not a firewall you simply add to an existing network. It requires meaningful adoption of the broader Zscaler Zero Trust Exchange.

The verdict: right for large enterprises adopting cloud-delivered SASE or SSE. SMBs wanting a traditional standalone appliance should evaluate Fortinet FortiGate or Sophos Firewall instead.

Last reviewed: September 2026

G2

4.5187 reviews

Gartner

4.5143 reviews

PeerSpot

8.450 reviews
Gartner MQ: Leader

Firewall / UTM / Network Security assessment

PROTECTIONStrong
Security services breadth
4 / 5
Threat prevention quality
4 / 5
OPERATIONSStrong
Throughput under load
5 / 5
Policy management UX
5 / 5
ANALYTICSStrong
Traffic & threat visibility
4 / 5
TRUST & ECOSYSTEMStrong
Scalability & HA
5 / 5

Strongest: Throughput under load

Watch out for: Traffic & threat visibility

Strengths & limitations

Strengths

●Zero hardware to provision, size, or maintain across 150 plus global points of presence
●Consistent policy enforcement regardless of user location
●Gartner Magic Quadrant Leader position for SSE reflecting genuine enterprise-scale validation

Watch out for

●Requires full adoption of the Zscaler architecture, a significant shift for organisations with existing appliance investment
●Not a standalone firewall appliance purchase
●Premium pricing puts it out of reach for SMB budgets

Best for

Large enterprises adopting a cloud-delivered SASE or SSE architecture.

Not suitable for: SMBs wanting a traditional standalone firewall appliance.

Compliance coverage

●Essential Eight
●AU Privacy Act
●SOC 2
●HIPAA
●NIST CSF
●PCI-DSS
●GDPR
●ISO 27001
●CIS Benchmarks
○CMMC
○NIS2
○DORA

Switching intelligence

Switching from

Common migration paths based on review data

  • Traditional appliance-based firewall

Also considering

Vendors typically shortlisted alongside

Also in our database

Zscaler also appears in:

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Quick facts

Pricing modelPer user, annual
Pricing rangeQuote-based, bundled with Zscaler Internet Access
Free trialNo
Min seatsNo minimum
Deployment time< 1 week
Complexity3 / 5
Pricing transparency2 / 5
AU presenceYes
IRAP assessedYes
Open sourceProprietary

Deployment

ModelsSaaS
OS supportWindows, macOS, iOS, Android
CloudAWS, Azure, GCP
Support24/7 Phone, Email, Dedicated CSM
Data residencyUS, EU, AU

Company

Zscaler

Founded 2007 · 1000+ employees · Public

HQ: US

Not publicly disclosed

Certifications

SOC 2 Type II, ISO 27001, IRAP

Integrations

OktaMicrosoft Entra IDCrowdStrikeSplunk