Zscaler Internet Access
TL;DR
Zscaler Internet Access is a cloud-native secure web gateway that inspects all user-to-internet traffic inline, replacing VPNs and on-prem security stacks with zero trust protection.
Key Facts
Pricing
Starting at Custom quote (~$60–$100/user/year reported)
ZIA Basic (Web Security)
- URL filtering & web categorization
- Antivirus & sandboxing
- Bandwidth control
- Cloud firewall
ZIA Advanced
- Everything in Basic
- SSL inspection at scale
- CASB & SaaS security
- Inline DLP
Zero Trust Bundle (ZIA + ZPA)
- Internet access + private app access
- VPN replacement architecture
- Digital experience monitoring
- Full Zero Trust Exchange platform
Additional Pricing Information
Everything is quoted by sales on a per-user, per-year basis. Third-party reporting puts entry web-security tiers around $60–$100/user/year, with SSL inspection, CASB, and DLP add-ons pushing full deployments well past $150/user/year.
Details
What is Zscaler Internet Access?
Zscaler Internet Access (ZIA) is the flagship half of Zscaler's Zero Trust Exchange, handling everything users reach on the public internet while its sibling ZPA covers private applications. Instead of backhauling traffic to a corporate data center, ZIA routes user traffic through Zscaler's global cloud, where every request gets inspected inline: URLs checked against categories, files sandboxed, SSL decrypted for deep analysis, and DLP policies enforced before anything leaves the building. For enterprises with distributed workforces, it eliminates both the VPN concentrator and the stack of on-prem appliances behind it. Reviewers score it 8.8 out of 10 across 447 TrustRadius reviews, crediting the security depth and consolidation economics while flagging admin-console complexity and occasional latency. Pricing is per-user annual subscription, quoted by sales, with meaningful add-on costs for advanced modules.
Key Features
- *Secure Web Gateway** — Inline inspection of all user-to-internet traffic
- *URL Filtering** — Category-based blocking with custom policies per user or group
- *SSL Inspection** — Scalable decryption of encrypted traffic without appliances
- *Cloud Sandboxing** — Dynamic analysis of suspicious files and downloads
- *CASB** — Visibility and control over sanctioned and shadow SaaS usage
- *Data Loss Prevention** — Inline detection of sensitive data leaving via web channels
- *Browser Isolation** — Isolate risky websites from endpoints entirely
- *AI Governance** — Keep generative AI usage on approved apps and prevent leakage
Who is it for?
- Large enterprises replacing VPN backhaul with direct-to-cloud security
- Distributed workforces needing identical policy everywhere they log in
- Regulated industries (finance, healthcare) enforcing strict DLP
- Security teams consolidating web gateways, CASB, and DLP into one platform
- Organizations adopting zero trust architecture as strategy
Who is it NOT for?
- Small businesses — the pricing model and admin complexity assume dedicated security staff
- Developer-heavy orgs unwilling to manage constant exemption requests
- Teams wanting transparent self-serve pricing
- Latency-sensitive workloads that can't tolerate inspection detours
- Companies not ready to route all traffic through a single vendor's cloud
The Bottom Line
Zscaler Internet Access is the reference implementation of secure web gateway-as-a-service, and for large enterprises killing their VPN backhaul, it delivers exactly what it promises: consistent, inspectable, zero trust internet access from anywhere. The security depth is real and the consolidation math often works. But respect the operational cost — a complex console your team must master, latency trade-offs on inspected traffic, and a developer population that will fight it weekly unless you plan exemptions well. If you're a mid-market company wanting similar outcomes with less overhead, look hard at Netskope or Cloudflare One first. At enterprise scale with security staff to run it, ZIA remains the category benchmark.
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