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🛡️ APPLICATION-SECURITY TOOLS & DIAGNOSTICS

Application Security Tools

Comprehensive suite of application security tools, automated network scanners, and OWASP-aligned assessment utilities. Audit HTTP security headers, evaluate Content Security Policy (CSP) and CAA DNS records, inspect cookie security flags, verify TLS configurations, and calculate CVSS v3.1 vulnerability scores—all client-side or through passive, privacy-preserving checks.

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100% Free Tools
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Instant Scans
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No Sign-Up
🛡️
OWASP Compliant

application-security Diagnostic Tools

Free online checkers, analyzers, and calculators for application-security.

Free

Application Security Best-Practices Checker

Review whether your application adheres to defensive software security best practices across authentication, authorization, secure SDLC, APIs, secrets, dependencies, testing, logging, and CI/CD pipelines.

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Free

Application Security Policy Generator

Generate a comprehensive, customizable Application Security Policy covering secure SDLC, authentication, input validation, cryptography, secrets management, API security, vulnerability management, and incident response.

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Free

CAA Record Checker

Check your domain's CAA DNS records and see which certificate authorities are authorized to issue normal or wildcard certificates. Analyze issue, issuewild, iodef, and CAA flags for free.

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Free

Cookie Security Checker

Check a website's cookies for Secure, HttpOnly, SameSite, Domain, Path and expiration settings. Identify potentially risky cookie configurations and get clear security recommendations.

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Free

CSP Checker

Check and analyze a website's Content Security Policy. Detect CSP headers, Report-Only policies, unsafe directives, wildcard sources, framing controls, nonces, hashes, and common configuration issues.

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Free

HTTPS Redirect Checker

Check whether a website redirects HTTP to HTTPS, inspect redirect status codes, follow the redirect chain safely, detect loops or HTTPS downgrades, and review the final destination.

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Free

Interactive App Security Checklist

Review, track, and document application security controls interactively with OWASP ASVS and NIST SSDF verification baselines, gap analysis, and multi-format export.

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Free

OWASP Top 10 Web Security Audit Checklist

Audit your web applications against OWASP Top 10 vulnerabilities: Broken Access Control, Cryptographic Failures, Injection, Insecure Design, Security Misconfiguration, and SSRF.

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Free

Security Controls Assessment

Assess the implementation status and operational effectiveness of technical and administrative security controls across NIST CSF, ISO 27001, and CIS benchmarks.

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Free

Security Headers Checker

Check a website's HTTP security headers including CSP, HSTS, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, framing protections, and other supported headers.

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Free

Security.txt & Vulnerability Disclosure Generator (RFC 9116)

Generate standardized security.txt files and vulnerability disclosure policies conforming to RFC 9116 for your /.well-known/security.txt deployment.

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Free

TLS Version Checker

Check which TLS versions a website supports. Test TLS 1.0, 1.1, 1.2, and 1.3 availability and identify legacy TLS protocol support with SafeNetworkHub.

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Free

Web Application Vulnerability & CVSS Scorer

Calculate Common Vulnerability Scoring System (CVSS v3.1) base scores: Attack Vector, Attack Complexity, Privileges Required, Scope, and Confidentiality/Integrity/Availability impact metrics.

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Free

Website Security Checklist Tool

Review and verify defensive website security controls across HTTPS, security headers, authentication, cookies, dependencies, backups, and configurations.

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Instant Audit

Quick Website Security Checker

Enter any public URL to audit HTTP security headers, SSL certificates, DNS hygiene, and security posture in seconds.

What We Audit:
✓ Content-Security-Policy & HSTS
✓ TLS/SSL Certificate Expiration
✓ SPF, DMARC & DNSSEC Records
✓ Clickjacking & Framing Controls

application-security Guides & Articles

In-depth security tutorials, explanations, and practical advice.

SECURITY OVERVIEW

Why application-security Security Matters

Maintaining robust security controls safeguards your web applications, user credentials, and cloud assets against evolving threat vectors. Continuous automated audits ensure early detection of misconfigurations.

✓ Defense-in-Depth: Multiple protective layers lower single points of failure.
✓ Compliance Ready: Aligned with OWASP Top 10, NIST, and CIS Benchmarks.
✓ Zero Friction: Non-intrusive scans perform passive RFC-compliant validation.

Recommended Security Checklist

1. Enforce HTTPS & Strict HSTS Header Essential
2. Configure Content Security Policy (CSP) Recommended
3. Implement DMARC & SPF Authentication High Priority

Frequently Asked Questions

Common questions about application-security tools & security audits.

Are these application-security tools completely free?
Yes! All tools on SafeNetworkHub are 100% free to use with no registration or credit card required.
Do scans impact website performance?
No. Our diagnostic scanners execute non-intrusive HEAD/GET HTTP requests and public DNS queries, causing zero performance impact.
How often should I run security audits?
We recommend auditing security headers, SSL certificates, and DNS settings whenever you deploy server updates or quarterly.