Sophos Firewall (XGS) vs Tempesta FW

Sophos Firewall (XGS) and Tempesta FW take different approaches to web application security. Consider your team's expertise and infrastructure preferences when evaluating these options.

View Sophos Firewall (XGS) Review View Tempesta FW Review

Sophos Firewall (XGS) 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

Sophos Firewall (XGS) 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.

Next-gen firewall (SFOS on XGS appliances) with a built-in reverse-proxy Web Application Firewall via its Web Server Protection module; the active successor to the end-of-life Sophos UTM.

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 Sophos Firewall (XGS) Tempesta FW
Overall Rating 3.8/5 4.0/5
Free Tier Yes Yes
Pricing Model Appliance plus subscription (varies by appliance and subscription bundle) Free (open source) + professional services
Ease of Use 3.9/5 2.5/5
Value for Money 4.0/5 4.8/5
Support 3.8/5 3.0/5
Open Source No Yes
Platforms XGS Series hardware appliances, virtual (VMware, Hyper-V, KVM), software/Home Edition, and cloud (Firewall in AWS and Azure) Linux (kernel-level integration), bare metal, cloud VMs
Compliance Common Criteria, FIPS-validated cryptography (model dependent) Contact vendor

Pricing Comparison

Sophos Firewall (XGS)

Model: Appliance plus subscription (varies by appliance and subscription bundle)

Free Tier Available

Home Edition

Free

Xstream Protection (Commercial)

Custom pricing

View full pricing →

Tempesta FW

Model: Free (open source) + professional services

Free Tier Available

Open Source

Free

Professional Services

Contact for pricing

View full pricing →

Features Comparison

Sophos Firewall (XGS)

  • Reverse-Proxy WAF

    Apache-based reverse proxy that protects published web servers against SQL injection, cross-site scripting, directory traversal, and other common web attacks.

  • Form Hardening

    Signs and validates form fields to prevent manipulation of submitted web forms.

  • URL Hardening

    Restricts accessible URLs based on the learned structure of the protected application.

  • Cookie Signing

    Cryptographically signs cookies to detect and block tampering.

  • Reverse-Proxy Authentication

    Adds basic or form-based authentication policies in front of published web servers via WAF rules.

  • Antivirus Scanning

    Scans uploads and traffic to protected web servers for malware as part of Web Server Protection.

Tempesta FW

  • 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.

  • Multi-Layer DDoS Protection

    Integrated protection against volumetric and application-layer DDoS attacks with rate limiting, JavaScript challenges, and adaptive QoS.

  • HTTP Tables

    Extends Linux iptables/nftables for application-layer filtering, enabling rules that combine IP addresses with HTTP headers and content.

  • Intelligent Load Balancing

    Machine learning-powered load balancing with persistent sessions, weighted round-robin, and rendezvous hashing strategies.

  • Web Acceleration

    Built-in caching using Tempesta DB, an ultra-fast in-memory database with NUMA-aware distribution and SIMD optimizations.

  • High-Performance TLS

    Tempesta TLS is 40-80% faster than Nginx/OpenSSL with 4x lower latency for TLS handshakes.

  • 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.

  • 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.

  • 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.

Sophos Firewall (XGS)

  • You need: Organizations already running Sophos Firewall, businesses wanting WAF and network security in one appliance, home labs and educational users via the free Home Edition
  • You want to start with a free tier
  • You're using: XGS Series hardware appliances, virtual (VMware, Hyper-V, KVM), software/Home Edition, and cloud (Firewall in AWS and Azure)
Learn more →

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
Learn more →

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: Sophos Firewall (XGS) or Tempesta FW?

Both Sophos Firewall (XGS) and Tempesta FW offer free tiers, making them accessible for startups. Sophos Firewall (XGS) scores higher for ease of use (3.9/5), which is valuable for smaller teams. Consider your immediate security needs and growth plans when choosing.

Which has better support: Sophos Firewall (XGS) or Tempesta FW?

Sophos Firewall (XGS) has a higher support rating (3.8/5) 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: Sophos Firewall (XGS) or Tempesta FW?

Sophos Firewall (XGS) scores higher for ease of use (3.9/5) versus Tempesta FW (2.5/5). The actual implementation effort depends on your existing infrastructure and team expertise.

Which is more cost-effective: Sophos Firewall (XGS) or Tempesta FW?

Both providers offer free tiers, making it easy to start without commitment. Tempesta FW scores higher for value (4.8/5). Total cost depends on your traffic volume, required features, and support level needs.

Which works better with AWS: Sophos Firewall (XGS) or Tempesta FW?

Sophos Firewall (XGS) explicitly supports AWS while Tempesta FW's AWS integration may vary. Consider whether native AWS integration or cross-cloud portability matters more for your use case.