Zscaler insights

CommercialVersions: [current]42 metrics

DNS issues cause intermittent ZPA connectivity in VDI environments

ISP or intermediate carrier causing network performance degradation

Device health degradation causing poor user experience

Hidden network bottlenecks from routing asymmetry and load balancing

SaaS application availability or performance issues before user impact

Unplanned downtime from lack of end-to-end network visibility

SSL inspection causes handshake failures with custom certificates

Secure Web Gateway rules block package downloads and container registries

Multi-PoP traffic routing causes inconsistent user experiences

Latency spikes with minimal diagnostic visibility in logs

Network blocking breaks CI/CD pipelines during build and deploy

API calls return 403 errors due to policy blocking

High TTFB with low PSE-App latency indicates application server bottleneck

Baseline performance indicators establish network health proof point

High Time To Last Byte indicates bandwidth or throughput constraints

Two-leg proxy path analysis isolates issue location

Total page fetch time over 500ms creates user-perceivable slowness

SSL handshake time around 55ms is normal for proxy-based connections

NSS cluster capacity exhausted beyond 1 billion web transactions

DLP evidence files replaced with placeholders when exceeding 100 MB

Sub-URLs truncated in logs beyond 2,041 characters

SCIM provisioning failures when exceeding 5 requests per second

CSV export requests blocked after 20 per hour

Firewall policy enforcement limited to 10 rules on Standard Firewall

Application segment limit requires specific client versions for expansion

SSL inspection misconfiguration prevents connectivity

URL filtering blocks legitimate websites

Network latency degrades Zscaler performance

Directory sync failure causes authentication failures

MFA misconfiguration prevents user login

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