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Free networking & security tools

Built by Cybersecurity Forefront. Use them anytime — no signup needed.

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Subnet Calculator

Compute network, broadcast, usable range, hosts, CIDR & wildcard mask.

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DNS Health Check

Audit SPF, DKIM, DMARC, DNSSEC, MTA-STS, and 4 major blacklists in seconds.

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CVE Lookup for your firewall

Check your Fortinet, WatchGuard, Zyxel, or pfSense firmware against the official NVD database.

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TLS / SSL Inspector

Cert chain, protocol matrix (TLS 1.0-1.3), HSTS, key size — graded A-F.

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Security Headers Analyzer

Grade CSP, HSTS, X-Frame-Options, Permissions-Policy and more out of 100.

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Password Breach Check

Privacy-first k-anonymous lookup against 850M+ leaked password hashes.

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Public Surface Audit

Discover subdomains & exposed services via Certificate Transparency (crt.sh) + DNS — risk-scored.

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NIS2 Readiness Assessment

15-question audit across NIS2 Article 21 measures, with PDF roadmap.

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Need the full toolkit?

Sign up to access ZeroConf — our multi-vendor firewall provisioning wizard with 37 supported models, live CLI preview, and saved configurations.

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Cybersecurity Forefront

The chat-first firewall configurator and Client IPAM for MSPs and security engineers. Free compliance tools, gated provisioning, no toil.

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  • Cybersecurity Forefront LLC
    30 N Gould St, Ste N
    Sheridan, WY 82801
    United States

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