Modshield SB vs Tempesta FW
Modshield SB and Tempesta FW take different approaches to web application security. Consider your team's expertise and infrastructure preferences when evaluating these options.
Modshield SB and Tempesta FW take fundamentally different approaches to web application security. Understanding your infrastructure and team capabilities will help determine which approach fits your needs.
Overview
Modshield SB and Tempesta FW are both popular web application firewall solutions. This comparison will help you understand the key differences and choose the right one for your needs.
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.
High-performance open-source WAF and web accelerator built directly into the Linux kernel, delivering up to 1.8M requests per second with integrated L3-L7 DDoS protection and automated bot mitigation via WebShield.
Quick Comparison
| Feature | Modshield SB | Tempesta FW |
|---|---|---|
| Overall Rating | 3.5/5 | 4.0/5 |
| Free Tier | No | Yes |
| Pricing Model | Subscription-based, per appliance | Free (open source) + professional services |
| Ease of Use | 3.8/5 | 2.5/5 |
| Value for Money | 3.5/5 | 4.8/5 |
| Support | 3.3/5 | 3.0/5 |
| Open Source | No | Yes |
| Platforms | Any web application (deployed as reverse proxy VM) | Linux (kernel-level integration), bare metal, cloud VMs |
| Compliance | OWASP Top 10 coverage, PCI DSS support | Contact vendor |
Pricing Comparison
Modshield SB
Model: Subscription-based, per appliance
Standard
Contact for pricing
Enterprise
Contact for pricing
Tempesta FW
Model: Free (open source) + professional services
Free Tier AvailableOpen Source
Free
Professional Services
Contact for pricing
Features Comparison
Modshield SB
-
ModSecurity Engine
Built on the proven ModSecurity WAF engine with full OWASP Core Rule Set compatibility.
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IP Reputation Filtering
Automatically block traffic from known malicious IP addresses using continuously updated threat intelligence feeds.
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Geo-Blocking
Country-level blacklisting and whitelisting to restrict access based on geographic origin.
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SIEM Integration
Forward security logs to external SIEM systems like Splunk and Elasticsearch for centralized monitoring.
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Built-in Load Balancer
Integrated load balancing distributes traffic across multiple backend servers without additional infrastructure.
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Compliance Metrics
Built-in compliance reporting and dashboards to help meet regulatory requirements.
Tempesta FW
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Kernel-Level Performance
Built directly into Linux TCP/IP stack, processing up to 1.8M HTTP requests per second - 3x faster than Nginx or HAProxy.
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Multi-Layer DDoS Protection
Integrated protection against volumetric and application-layer DDoS attacks with rate limiting, JavaScript challenges, and adaptive QoS.
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HTTP Tables
Extends Linux iptables/nftables for application-layer filtering, enabling rules that combine IP addresses with HTTP headers and content.
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Intelligent Load Balancing
Machine learning-powered load balancing with persistent sessions, weighted round-robin, and rendezvous hashing strategies.
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Web Acceleration
Built-in caching using Tempesta DB, an ultra-fast in-memory database with NUMA-aware distribution and SIMD optimizations.
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High-Performance TLS
Tempesta TLS is 40-80% faster than Nginx/OpenSSL with 4x lower latency for TLS handshakes.
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Bot Protection (WebShield)
Open-source automated bot protection via WebShield — detects and blocks DDoS bots, scrapers, shopping bots, and booking bots using TLS and HTTP fingerprint analysis on access logs stored in ClickHouse.
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Volumetric DDoS Protection
Upcoming open-source volumetric DDoS protection solution, completing a full L3-L7 DDoS and bot mitigation stack when combined with Tempesta FW's application-layer defences and WebShield.
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Native XDP Integration
Uses Linux XDP (eXpress Data Path) for early packet dropping, enabling efficient mitigation of volumetric attacks.
Which One Is Right for You?
The best WAF depends on your specific requirements, infrastructure, and team expertise.
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)
Tempesta FW
- You need: High-traffic sites requiring maximum performance, organizations with Linux expertise, teams wanting to replace multiple infrastructure components, performance-critical applications
- You want to start with a free tier
- You prefer open-source solutions
- You're using: Linux (kernel-level integration), bare metal, cloud VMs
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: Modshield SB or Tempesta FW?
Tempesta FW offers a free tier while Modshield SB does not, making Tempesta FW more accessible for budget-conscious startups. Modshield SB scores higher for ease of use (3.8/5), which is valuable for smaller teams. Consider your immediate security needs and growth plans when choosing.
Which has better support: Modshield SB or Tempesta FW?
Modshield SB has a higher support rating (3.3/5) compared to Tempesta FW (3.0/5). 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: Modshield SB or Tempesta FW?
Modshield SB scores higher for ease of use (3.8/5) versus Tempesta FW (2.5/5). The actual implementation effort depends on your existing infrastructure and team expertise.
Which is more cost-effective: Modshield SB or Tempesta FW?
Tempesta FW offers a free tier while Modshield SB requires a paid plan. Tempesta FW scores higher for value (4.8/5). Total cost depends on your traffic volume, required features, and support level needs.
What's the difference between Tempesta FW (open source) and Modshield SB (commercial)?
Tempesta FW is open source, which means you can inspect the code, customize it, and self-host without licensing fees. Modshield SB is a commercial solution with managed support and regular updates. Open source is ideal if you have in-house expertise and want full control. Commercial solutions are better if you prefer managed security with vendor support.