Imunify360 vs Tempesta FW

Imunify360

Model: Per-server subscription, tiered by number of hosting accounts

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Tempesta FW

Model: Free (open source) + professional services

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Imunify360

• Managed WAF Rules

  ModSecurity-based WAF with proprietary rules maintained by Imunify's security team. Automatically updated to cover new WordPress plugin vulnerabilities, CMS exploits, and emerging attack patterns.

• Proactive Defense

  Real-time PHP script behavior analysis that detects and blocks malicious activity during execution. Catches zero-day attacks that signature-based WAFs miss entirely.

• Virtual Patching

  Blocks exploit attempts against known vulnerabilities in WordPress plugins, themes, and CMS software before official patches are released or applied.

• WebShield

  Reverse proxy layer that filters bot traffic and mitigates DDoS attacks using invisible JavaScript challenges instead of traditional CAPTCHAs.

• Automated Malware Cleanup

  Detects and removes malicious code from files automatically, preserving the original file integrity. Includes database scanning for CMS infections.

• Global Threat Intelligence

  Feeds from 57M+ protected domains. An attack blocked on one server instantly protects all other Imunify-protected servers worldwide.

• WordPress Plugin

  Dedicated WordPress plugin providing site-level security dashboard, scan results, proactive defense status, and malware details directly in wp-admin.

• Compromised Password Reset

  Automatically forces password resets when it detects that cPanel or WordPress credentials were used in an attack, breaking reinfection cycles.

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.