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Free Web Application Firewalls Benchmarked: SafeLine Leads, Cloudflare Lags in 2025 Test

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A 2025 benchmark using 33,669 OWASP Top 10 attack payloads compared five free web application firewalls across detection rate, false positives, and ease of setup. SafeLine Community topped the test with a 71.65% detection rate and just 0.07% false positives, while Cloudflare Free detected only 10.70% of attacks, limiting its practical value as a WAF. ModSecurity matched SafeLine on detection but produced false positives at 250 times the rate, requiring hours of manual tuning. CrowdSec and BunkerWeb were not included in the benchmark dataset, though their effectiveness depends heavily on the underlying rule sets they use. Experts recommend free WAFs for personal sites and small businesses, but advise paid, managed solutions for SaaS platforms, healthcare, or finance applications where uptime guarantees and SLA-backed support are critical.

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Free Web Application Firewalls Benchmarked: SafeLine Leads, Cloudflare Lags in 2025 Test · ShortSingh