Citrix NetScaler Application Firewall vs Solid Security (formerly iThemes Security)
Citrix NetScaler Application Firewall and Solid Security (formerly iThemes Security) take different approaches to web application security. Consider your team's expertise and infrastructure preferences when evaluating these options.
Citrix NetScaler Application Firewall and Solid Security (formerly iThemes Security) take fundamentally different approaches to web application security. Understanding your infrastructure and team capabilities will help determine which approach fits your needs.
Overview
Citrix NetScaler Application Firewall and Solid Security (formerly iThemes Security) are both popular web application firewall solutions. This comparison will help you understand the key differences and choose the right one for your needs.
Enterprise application firewall integrated into the Citrix NetScaler (now Citrix ADC) application delivery controller, providing positive and negative security models with deep traffic inspection.
Comprehensive WordPress security plugin with Patchstack-powered firewall rules, virtual patching, two-factor authentication, and site scanning for proactive protection.
Quick Comparison
| Feature | Citrix NetScaler Application Firewall | Solid Security (formerly iThemes Security) |
|---|---|---|
| Overall Rating | 4.0/5 | 4.1/5 |
| Free Tier | No | Yes |
| Pricing Model | Perpetual license or subscription, bundled with Citrix ADC | Freemium (Free tier + annual Pro license) |
| Ease of Use | 3.2/5 | 4.3/5 |
| Value for Money | 3.5/5 | 4.2/5 |
| Support | 4.0/5 | 4.0/5 |
| Open Source | No | Yes |
| Platforms | On-premises, AWS, Azure, GCP, VMware, Hyper-V, KVM, Citrix Hypervisor | WordPress (self-hosted) |
| Compliance | PCI DSS, HIPAA, FIPS 140-2, Common Criteria, SOC 2 | Contact vendor |
Pricing Comparison
Citrix NetScaler Application Firewall
Model: Perpetual license or subscription, bundled with Citrix ADC
NetScaler VPX (Virtual)
Starting ~$3,000/year
NetScaler MPX (Hardware)
Starting ~$15,000+
NetScaler SDX (Multi-tenant)
Custom pricing
Solid Security (formerly iThemes Security)
Model: Freemium (Free tier + annual Pro license)
Free Tier AvailableFree
$0
Pro (1 site)
$99/year (~$8.25/month)
Pro (multi-site)
From $199/year
Features Comparison
Citrix NetScaler Application Firewall
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Positive Security Model
Learns normal application behavior automatically and blocks requests that deviate from the learned profile, protecting against zero-day attacks.
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Negative Security Model
Signature-based protection using regularly updated rule sets to block known attack patterns including OWASP Top 10 threats.
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Bot Management
Identifies and manages automated traffic using device fingerprinting, CAPTCHA challenges, rate limiting, and reputation-based filtering.
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API Protection
Schema validation, rate limiting, and content inspection for REST and SOAP APIs with automatic policy generation from API definitions.
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Integrated ADC Platform
WAF runs on the same appliance handling load balancing, SSL, and content switching, reducing network complexity and latency.
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Centralized Management
NetScaler Console (formerly MAS) provides centralized policy management, analytics, and configuration across multiple ADC instances.
Solid Security (formerly iThemes Security)
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Patchstack Firewall
Virtual patching rules powered by Patchstack that protect against known plugin and theme vulnerabilities automatically.
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Two-Factor Authentication
Multiple 2FA methods including authenticator apps, email codes, and backup codes for all user roles.
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Passwordless Login
Login via passkeys and biometrics, eliminating password-based attacks entirely (Pro feature).
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Site Scanner
Checks for known malware, vulnerabilities in plugins and themes, and blocklist status.
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File Change Detection
Monitors WordPress core files and alerts when unexpected changes are detected.
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Security Dashboard
Unified dashboard showing security status, recent events, and actionable recommendations.
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Trusted Devices
Recognizes trusted devices and restricts admin access from unknown devices (Pro feature).
Which One Is Right for You?
The best WAF depends on your specific requirements, infrastructure, and team expertise.
Citrix NetScaler Application Firewall
- You need: Organizations already using Citrix ADC, enterprises needing combined load balancing and WAF, high-throughput environments, regulated industries
- You're using: On-premises, AWS, Azure, GCP, VMware, Hyper-V, KVM, Citrix Hypervisor
Solid Security (formerly iThemes Security)
- You need: WordPress agencies managing multiple sites, users wanting modern authentication features like passkeys, sites needing automatic virtual patching for plugin vulnerabilities
- You want to start with a free tier
- You prefer open-source solutions
- You're using: WordPress (self-hosted)
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 is better for startups: Citrix NetScaler Application Firewall or Solid Security (formerly iThemes Security)?
Solid Security (formerly iThemes Security) offers a free tier while Citrix NetScaler Application Firewall does not, making Solid Security (formerly iThemes Security) more accessible for budget-conscious startups. Solid Security (formerly iThemes Security) scores higher for ease of use (4.3/5), which is valuable for smaller teams. Consider your immediate security needs and growth plans when choosing.
Which has better support: Citrix NetScaler Application Firewall or Solid Security (formerly iThemes Security)?
Solid Security (formerly iThemes Security) has a higher support rating (4.0/5) compared to Citrix NetScaler Application Firewall (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: Citrix NetScaler Application Firewall or Solid Security (formerly iThemes Security)?
Solid Security (formerly iThemes Security) scores higher for ease of use (4.3/5) versus Citrix NetScaler Application Firewall (3.2/5). The actual implementation effort depends on your existing infrastructure and team expertise.
Which is more cost-effective: Citrix NetScaler Application Firewall or Solid Security (formerly iThemes Security)?
Solid Security (formerly iThemes Security) offers a free tier while Citrix NetScaler Application Firewall requires a paid plan. Solid Security (formerly iThemes Security) scores higher for value (4.2/5). Total cost depends on your traffic volume, required features, and support level needs.
Which works better with AWS: Citrix NetScaler Application Firewall or Solid Security (formerly iThemes Security)?
Citrix NetScaler Application Firewall explicitly supports AWS while Solid Security (formerly iThemes Security)'s AWS integration may vary. Consider whether native AWS integration or cross-cloud portability matters more for your use case.