Google Cloud Armor vs Modshield SB
Both Google Cloud Armor and Modshield SB are capable WAF solutions. The right choice depends on your specific infrastructure, budget, and feature requirements.
Overview
Google Cloud Armor and Modshield SB 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.
ModSecurity-based web application firewall with an intuitive management UI, offering IP reputation filtering, geo-blocking, SIEM integration, and built-in load balancing in a self-hosted virtual appliance.
Quick Comparison
| Feature | Google Cloud Armor | Modshield SB |
|---|---|---|
| Overall Rating | 4.2/5 | 3.5/5 |
| Free Tier | No | No |
| Pricing Model | Pay-per-use (policies + rules + requests) | Subscription-based, per appliance |
| Ease of Use | 3.8/5 | 3.8/5 |
| Value for Money | 4.0/5 | 3.5/5 |
| Support | 4.0/5 | 3.3/5 |
| Platforms | Google Cloud Load Balancer (HTTP/S, TCP/SSL Proxy), Cloud CDN, Cloud Run, GKE | Any web application (deployed as reverse proxy VM) |
| Compliance | SOC 1/2/3, PCI DSS, ISO 27001, ISO 27017, ISO 27018, FedRAMP, HIPAA | OWASP Top 10 coverage, PCI DSS support |
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
Modshield SB
Model: Subscription-based, per appliance
Standard
Contact for pricing
Enterprise
Contact for pricing
Features Comparison
Google Cloud Armor
-
Pre-configured WAF Rules
Ready-to-use rule sets for OWASP Top 10, SQLi, XSS, and other common attacks.
-
Adaptive Protection
ML-powered automatic detection and mitigation of sophisticated L7 DDoS attacks.
-
Bot Management
Integration with reCAPTCHA Enterprise for advanced bot detection and challenge pages.
-
Rate Limiting
Flexible rate limiting based on IP, headers, or other request attributes.
-
Geo-Based Access Control
Allow or deny traffic based on geographic location of the request origin.
-
Named IP Lists
Block known malicious IPs using Google's threat intelligence or custom lists.
Modshield SB
-
ModSecurity Engine
Built on the proven ModSecurity WAF engine with full OWASP Core Rule Set compatibility.
-
IP Reputation Filtering
Automatically block traffic from known malicious IP addresses using continuously updated threat intelligence feeds.
-
Geo-Blocking
Country-level blacklisting and whitelisting to restrict access based on geographic origin.
-
SIEM Integration
Forward security logs to external SIEM systems like Splunk and Elasticsearch for centralized monitoring.
-
Built-in Load Balancer
Integrated load balancing distributes traffic across multiple backend servers without additional infrastructure.
-
Compliance Metrics
Built-in compliance reporting and dashboards to help meet regulatory requirements.
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
Modshield SB
- You need: Organizations wanting managed ModSecurity with a GUI, self-hosted WAF requirements, compliance-focused deployments
- You're using: Any web application (deployed as reverse proxy VM)
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 Modshield SB?
Google Cloud Armor has a higher support rating (4.0/5) compared to Modshield SB (3.3/5). 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 Modshield SB?
Modshield SB scores higher for ease of use (3.8/5) versus Google Cloud Armor (3.8/5). The actual implementation effort depends on your existing infrastructure and team expertise.
Which is more cost-effective: Google Cloud Armor or Modshield SB?
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.