Zscaler
Zero trust exchange delivering secure internet access (ZIA) and private application access (ZPA).
Technical Architecture & Overview
Zscaler routes user traffic through its cloud, where Zscaler Internet Access filters web and DNS traffic and Zscaler Private Access brokers connections to internal applications without exposing the network. The platform sits inline on each connection and applies identity and context policy. It has been a Leader in the Gartner Magic Quadrant for SSE for five consecutive years and was first named a Leader in the Magic Quadrant for SASE Platforms in 2026.
Targeted Technical Use Cases
Large enterprises replacing VPN and on-premises web gateways at scale.
Evaluation & Trade-offs
Core Strengths
- +ZTNA with user-to-app segmentation and context-aware policies.
- +The vendor reports more than 750 billion transactions secured per day.
- +Inline inspection of TLS/SSL-encrypted traffic.
Trade-Offs & Limitations
- -No published pricing; access starts with a sales demo.
- -Cloud dependency for all traffic paths.
Defensive Security Application
User-to-app segmentation and web filtering that shrink the attack surface of remote access.
Frequently Asked Questions
What is Zscaler?→
Zscaler routes user traffic through its cloud, where Zscaler Internet Access filters web and DNS traffic and Zscaler Private Access brokers connections to internal applications without exposing the network. The platform sits inline on each connection and applies identity and context policy. It has been a Leader in the Gartner Magic Quadrant for SSE for five consecutive years and was first named a Leader in the Magic Quadrant for SASE Platforms in 2026.
What is Zscaler used for?→
Large enterprises replacing VPN and on-premises web gateways at scale.
What are the strengths of Zscaler?→
- +ZTNA with user-to-app segmentation and context-aware policies.
- +The vendor reports more than 750 billion transactions secured per day.
- +Inline inspection of TLS/SSL-encrypted traffic.
What are the limitations of Zscaler?→
- +No published pricing; access starts with a sales demo.
- +Cloud dependency for all traffic paths.
How is Zscaler used defensively?→
User-to-app segmentation and web filtering that shrink the attack surface of remote access.