Zscaler

Cloud-native SASE and zero trust platform for secure internet and private application access

SASE & Zero TrustCustom enterprise pricing / Per-user subscription
How we work:This listing is aggregated from Zscaler's official documentation, public pricing pages, community discussions (Reddit, HN, forums), and real user feedback. We do not do hands-on testing. We aggregate and organize what's already out there. Last verified February 2026.

What is Zscaler?

Zscaler is one of the largest inline cloud security platform, delivering Secure Access Service Edge (SASE) and zero trust connectivity to enterprises globally. Built on a purpose-built cloud architecture with over 150 data centers worldwide, Zscaler Internet Access (ZIA) and Zscaler Private Access (ZPA) inspect all traffic — including encrypted TLS/SSL — to enforce security policies, prevent data loss, and block threats without the latency and complexity of legacy appliance-based architectures. Zscaler eliminates the need for VPNs, firewalls at branch offices, and traditional network security stacks by routing all user traffic through its global cloud for inspection and policy enforcement.

Best for: Cloud-native SASE and zero trust platform for secure internet and private application access
Pros
  • Large global cloud with 150+ data centers for low-latency inspection
  • True inline inspection of all traffic including encrypted TLS/SSL
  • Eliminates VPNs and reduces attack surface with zero trust architecture
  • Comprehensive platform covering SWG, ZTNA, CASB, and DLP
  • Proven at scale with Fortune 500 enterprises and millions of users
Cons
  • Premium pricing puts it out of reach for SMBs and mid-market
  • Complex deployment and configuration for large enterprises
  • Vendor lock-in with proprietary architecture and limited interoperability
  • ZPA and ZIA sold as separate products, increasing total cost
  • Limited customization compared to building with best-of-breed point solutions

Key Features

Zscaler Internet Access (ZIA) secure web gateway
Zscaler Private Access (ZPA) zero trust network access
Inline TLS/SSL inspection at cloud scale
Cloud Access Security Broker (CASB)
Data Loss Prevention (DLP)
Cloud firewall and IPS
Digital Experience Monitoring (ZDX)
Zscaler Deception for active defense