Performance and connectivity gaps
Cloudflare’s performance testing revealed that its Gateway product outperformed Zscaler Internet Access (ZIA) by 58%, its Access product beat Zscaler Private Access (ZPA) by 38%, and its Browser Isolation beat Zscaler Cloud Browser Isolation by 45% in worldwide performance tests. These tests used three VMs placed side by side in the cloud to request data from five different endpoints, including Google, Slack, and Zoom. The measurement methodology involved placing three VMs in the cloud side by side, with one running the Cloudflare WARP client and one running the ZIA client. Cloudflare also tested against Zscaler Internet Access by using the Cloudflare WARP client and the ZIA client on the same testing endpoints. Zscaler’s proxy latency exceeded 100ms at the 95th percentile, meaning it missed its own service level agreement. These delays reach between 140 and 240 milliseconds compared to the Cloudflare alternative. You already know that latency affects employee productivity, so these specific numbers dictate real-world success. Zscaler’s architecture relies on a global network of 150 data centers that process over 500 billion daily transactions to deliver security for more than 9,400 enterprise customers worldwide. Instead of backhauling traffic to a central data center, the platform routes traffic to the nearest point of presence to broker connections based on identity and context. The system updates itself from over 135 billion requests daily to improve detection.
Market position and pricing
Zscaler maintains a massive footprint, yet its position faces pressure from rapid innovators. The company reports an annual recurring revenue of $3.4 billion and serves a large base of users moving away from legacy VPNs. While Zscaler holds the Leader position in both the 2026 Gartner SASE Platforms and SSE reports, Netskope achieved the highest ability to execute score in the SASE Platforms report. Cloudflare also claims a Visionary status in both the 2026 Gartner SASE Platforms and SSE reports. This competitive landscape saw Cloudflare secure a $5 million three-year contract with an aerospace company in September 2026.
| Product Category | Zscaler Cost (per user/month) | Performance Metric |
|---|---|---|
| Internet Access (ZIA) | $20 – $50 | 58% slower than Cloudflare |
| Private Access (ZPA) | $20 – $50 | 38% slower than Cloudflare |
| Browser Isolation | $20 – $50 | 45% slower than Cloudflare |
Zscaler delivers up to 70% savings on hardware and licensing compared to traditional appliance-based systems. Most enterprises using the platform seek to eliminate the "castle-and-moat" security model. This shift includes the new Workload Communications solution, which extends Zero Trust to applications hosted in public clouds. Zscaler simplifies multi-cloud connectivity by moving away from traditional IP-based routing and VPNs. The ZPA Private Service Edge software also delivers local brokering for users in locations with internet access challenges. This software remains hosted by the customer but managed by Zscaler.
Management complexity and the final verdict
Zscaler delivers security for regulated industries, but administrators find the platform hard to use. The policy management process involves a steep learning curve because the initial setup requires detailed planning for user segmentation and traffic steering. Zscaler also enforces strict limits on customization, such as permitting only 64 custom URL categories by default. Using the platform requires significant security engineering expertise to manage rigid traffic steering policies and whitelisting large IP ranges. The system utilizes AI and machine learning to evaluate over 500 trillion daily signals to determine access. AI-powered sandboxing detects and quarantines unknown malware and zero-day threats in real time. Zscaler delivers this via a single-pass inspection architecture that scans traffic once while running multiple security engines simultaneously. Does the security depth justify the administrative burden? Zscaler remains the most mature option for large enterprises requiring deep inspection, but its performance lags behind edge-scale competitors.
