Google Cloud Armor vs Zscaler Internet Access (ZIA) WAF
Both Google Cloud Armor and Zscaler Internet Access (ZIA) WAF are capable WAF solutions. The right choice depends on your specific infrastructure, budget, and feature requirements.
Overview
Google Cloud Armor and Zscaler Internet Access (ZIA) WAF are both popular web application firewall solutions. This comparison will help you understand the key differences and choose the right one for your needs.
Google Cloud's edge security service combining WAF, DDoS protection, and adaptive protection with the scale and intelligence of Google's global network.
Enterprise zero trust security platform with integrated cloud WAF capabilities as part of Zscaler Internet Access. Inspects all traffic including encrypted SSL/TLS at cloud scale.
Quick Comparison
| Feature | Google Cloud Armor | Zscaler Internet Access (ZIA) WAF |
|---|---|---|
| Overall Rating | 4.2/5 | 3.8/5 |
| Free Tier | No | No |
| Pricing Model | Pay-per-use (policies + rules + requests) | Per user / Annual subscription |
| Ease of Use | 3.8/5 | 3.2/5 |
| Value for Money | 4.0/5 | 3.0/5 |
| Support | 4.0/5 | 4.0/5 |
| Platforms | Google Cloud Load Balancer (HTTP/S, TCP/SSL Proxy), Cloud CDN, Cloud Run, GKE | Cloud (SaaS) |
| Compliance | SOC 1/2/3, PCI DSS, ISO 27001, ISO 27017, ISO 27018, FedRAMP, HIPAA | SOC 2, ISO 27001, FedRAMP, HIPAA, PCI DSS, GDPR |
Pricing Comparison
Google Cloud Armor
Model: Pay-per-use (policies + rules + requests)
Standard (Small)
~$20/mo + $0.75/M requests
Standard (Medium)
~$55/mo + $0.75/M requests
Plus (Managed Protection)
$3,000/month
Enterprise
Custom pricing
Zscaler Internet Access (ZIA) WAF
Model: Per user / Annual subscription
ZIA Business
Custom pricing
ZIA Transformation
Custom pricing
Features Comparison
Google Cloud Armor
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Pre-configured WAF Rules
Ready-to-use rule sets for OWASP Top 10, SQLi, XSS, and other common attacks.
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Adaptive Protection
ML-powered automatic detection and mitigation of sophisticated L7 DDoS attacks.
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Bot Management
Integration with reCAPTCHA Enterprise for advanced bot detection and challenge pages.
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Rate Limiting
Flexible rate limiting based on IP, headers, or other request attributes.
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Geo-Based Access Control
Allow or deny traffic based on geographic location of the request origin.
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Named IP Lists
Block known malicious IPs using Google's threat intelligence or custom lists.
Zscaler Internet Access (ZIA) WAF
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Inline WAF Protection
Inspects web traffic inline for OWASP Top 10 threats as part of the broader ZIA security stack.
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Full SSL/TLS Inspection
Decrypts, inspects, and re-encrypts all encrypted traffic at cloud scale without performance degradation.
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AI-Powered Threat Detection
Machine learning models analyze traffic patterns to detect zero-day threats and advanced attacks.
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Cloud Firewall
Stateful inspection firewall for all ports and protocols, extending protection beyond HTTP/S traffic.
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Centralized Policy Management
Single console for global security policy enforcement across 150+ data centers.
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Zero Trust Architecture
Identity-based access control ensuring users only reach authorized applications regardless of location.
Which One Is Right for You?
The best WAF depends on your specific requirements, infrastructure, and team expertise.
Google Cloud Armor
- You need: GCP-native applications, organizations using Google Cloud, applications needing reCAPTCHA integration, multi-cloud with GCP component
- You're using: Google Cloud Load Balancer (HTTP/S, TCP/SSL Proxy), Cloud CDN, Cloud Run, GKE
Zscaler Internet Access (ZIA) WAF
- You need: Large enterprises adopting zero trust, organizations wanting a single vendor for all web security, companies with distributed workforces needing consistent global security policy
- You're using: Cloud (SaaS)
We recommend evaluating both options with a trial or free tier before committing. Consider your existing infrastructure, team expertise, compliance requirements, and budget.
Frequently Asked Questions
Which has better support: Google Cloud Armor or Zscaler Internet Access (ZIA) WAF?
Zscaler Internet Access (ZIA) WAF has a higher support rating (4.0/5) compared to Google Cloud Armor (4.0/5). However, support quality can vary based on your plan tier - enterprise customers typically receive more responsive support from both providers. Consider evaluating support during a trial period.
Which is easier to implement: Google Cloud Armor or Zscaler Internet Access (ZIA) WAF?
Google Cloud Armor scores higher for ease of use (3.8/5) versus Zscaler Internet Access (ZIA) WAF (3.2/5). The actual implementation effort depends on your existing infrastructure and team expertise.
Which is more cost-effective: Google Cloud Armor or Zscaler Internet Access (ZIA) WAF?
Neither provider offers a completely free tier. Google Cloud Armor scores higher for value (4.0/5). Total cost depends on your traffic volume, required features, and support level needs.
Which is better for enterprise: Google Cloud Armor or Zscaler Internet Access (ZIA) WAF?
Zscaler Internet Access (ZIA) WAF is positioned for enterprise use cases, while Google Cloud Armor may be more suited for small to mid-market organizations. Both offer compliance certifications important for enterprise. Enterprise buyers should evaluate SLAs, support options, and integration capabilities.