Free Security Audit Tool
Free tool
Full external audit across TLS, security headers, cookies, CORS, DNS (SPF, DKIM, DMARC, CAA), and 30+ other checks. Audit-ready PDF for your next customer security review.
- Security configuration assessment
- Compliance readiness check
- Security posture evaluation
- Risk severity ratings
- Audit-ready reports
No credit card requiredProduction-safe (100% passive)No setup or code required
Trusted by 4,000+ security & engineering teams
What you get for free
18 core security checks via this tool, passive scans, step-by-step remediation, security score on every result.
What Essential adds at $39/mo
+17 advanced checks, continuous monitoring, daily security score history, email alerts, GitHub SAST, board-ready PDFs, SOC 2 / ISO 27001 / PCI reports.
Why security audits matter
Regular security audits help you maintain a strong security posture and prepare for compliance assessments. This tool provides:
- Compliance readiness: Identify gaps before audits and assessments
- Risk management: Understand your security risks and prioritize remediation
- Audit documentation: Generate reports suitable for compliance audits
- Continuous improvement: Track security improvements over time and be alerted of new security issues
- Stakeholder confidence: Demonstrate security commitment to customers and partners
Use this security audit tool for regular assessments, pre-audit preparation, and continuous security monitoring. Combine with professional security assessments for comprehensive coverage.
What to do with audit results
After completing your security audit, use the results to improve your security posture:
- Prioritize findings: Focus on critical and high-risk issues first
- Create remediation plan: Assign owners and set timelines for fixes
- Document improvements: Track remediation progress and maintain audit trail
- Schedule follow-up audits: Regular audits ensure continuous security improvement
- Share with stakeholders: Use reports to demonstrate security commitment
For compliance audits, ensure all findings are addressed and documented. Use audit reports as evidence of security controls and continuous improvement efforts. Consider engaging professional auditors performing PEN-tests for formal compliance validation.
What this security audit covers
Security Configuration Assessment:
- Cookie security
- Security header implementation
- Error handling and information disclosure
- Security configuration quality
Infrastructure Security:
- TLS/SSL configuration and certificate management
- Security headers implementation (CSP, HSTS, etc.)
- Cookie security
- CORS policy configuration
- Server configuration and information disclosure
Compliance Readiness Indicators:
- Technical security controls relevant to PCI DSS
- Transmission security (TLS/SSL) for HIPAA
- Security controls relevant to SOC 2
- Security configuration checks for ISO 27001
- Technical security controls relevant to GDPR
Network & DNS Security:
- Open ports and service exposure
- DNS security configuration (DNSSEC, CAA)
- Email security (SPF, DKIM, DMARC)
- Subdomain takeover risks
- Network security posture
Application Security Configuration:
- Security misconfigurations
- Vulnerable JavaScript libraries (frontend dependencies)
- TLS/SSL encryption configuration
- Overall security posture
How Barrion verifies this
Barrion runs the audit from an external vantage point, so every check reflects what an attacker or auditor sees without credentials. We fetch your site over HTTPS, follow redirects, and capture the full response chain, including headers, certificate metadata, cookie flags, and the rendered DOM. Each signal is then evaluated against current OWASP, NIST, and Mozilla guidance instead of a static snapshot of last year's best practices.
On the network side we resolve your domain, inspect DNS records (DNSSEC, CAA, SPF, DKIM, DMARC, MX), and probe the TLS handshake to grade protocol versions, cipher suites, certificate chain validity, and expiry. Open ports and exposed services are correlated with the host to flag unintentional exposure, and subdomains are enumerated to surface takeover risks from dangling CNAMEs.
Findings are deduplicated, scored by severity and exploitability, and mapped to the compliance frameworks they touch. The result is an audit-ready report you can hand to a stakeholder, plus prioritized remediation steps that link straight back to the offending header, certificate, or DNS record so engineers can fix the root cause in minutes.
Tool-specific questions
What's the difference between a security audit and a penetration test?
A security audit evaluates your security controls, policies, and compliance with standards. A penetration test simulates attacks to find vulnerabilities. Audits focus on 'what should be' vs 'what is', while penetration tests focus on 'what can be exploited'. Use audits for compliance and policy review, and use automated security solutions like Barrion for vulnerability discovery.
Can this security audit tool help with compliance requirements?
Yes, our security audit tool helps with compliance requirements like PCI DSS, HIPAA, SOC 2, ISO 27001, and GDPR. It evaluates security controls, identifies gaps, and generates audit-ready reports. However, formal compliance validation typically requires professional auditors and internal assessments.
How often should I run security audits?
Run security audits quarterly for ongoing monitoring, before compliance assessments, and after major changes or security incidents. Use Barrion's continuous monitoring for automated daily security checks and get instant alerts when issues are detected.
What makes a good security audit report?
A good security audit report includes executive summary, detailed findings with risk ratings, evidence of security controls, compliance gap analysis, prioritized remediation recommendations, and action plans. Our tool generates comprehensive reports suitable for stakeholders and compliance purposes.
Is this audit tool suitable for enterprise security audits?
Our security audit tool provides a solid foundation for security assessments and can identify many common issues. For enterprise needs, combine with internal security assessments, professional audits, and compliance validation. Use our tool for regular monitoring and pre-audit preparation.
What compliance frameworks does this audit tool cover?
Our security audit tool evaluates technical security controls that are relevant to PCI DSS, HIPAA, SOC 2, ISO 27001, GDPR, and other major compliance frameworks. It checks security configuration requirements common across these standards and identifies gaps in your technical security posture. Note that full compliance requires additional policy, procedural, and organizational controls.
How long does a security audit take?
Most automated security audits complete within 2-5 minutes for single-site assessments. Complex applications may take 5-10 minutes. This is significantly faster than manual audits, which typically take days or weeks depending on scope.
Can I use audit reports for customer security questionnaires?
Yes, security audit reports can help answer customer security questionnaires and demonstrate your security commitment. They provide evidence of security controls and continuous improvement efforts. Supplement with additional documentation as needed for specific requirements.
What should I do if audit findings show compliance gaps?
If audit findings show compliance gaps, prioritize remediation based on risk and compliance requirements. Create a remediation plan, assign owners, set timelines, and track progress. For critical gaps, consider engaging compliance consultants or professional auditors for guidance.
Does this replace professional security audits?
No, our automated security audit tool complements but doesn't replace professional audits. Use it for regular monitoring, pre-audit preparation, and continuous security assessment. Professional audits provide deeper analysis, policy review, and formal compliance validation.
Why Barrion
Built for the engineers who already have enough to fix.
Speed
Real-time results
Instant analysis with a detailed report. You see findings as the scan runs, not after.
Coverage
Comprehensive checks
35+ checks per scan covering TLS, headers, CORS, cookies, DNS, email auth, and more, in a single pass.
Action
Step-by-step fixes
Every finding ships with the exact remediation step for your framework. Hand it to the engineer who owns the surface.
Other tools
More free checks, for the rest of your surface.
Complete Security Scan
Complete website security analysis with comprehensive vulnerability detection
Pre-Pentest Security Scan
Passive scan that catches the misconfigurations a pentester finds first. Use it before a manual engagement to clear the easy issues.
Security Compliance Checker
Check compliance with PCI DSS, HIPAA, SOC 2, ISO 27001, and GDPR. Get compliance readiness reports.
WAF Checker
Detect Web Application Firewall presence through passive header analysis. Identify WAF/CDN providers.
Security Headers Test
Check your website's HTTP security headers configuration
TLS/SSL Security Checker
Validate your SSL/TLS configuration and certificate setup
Related guides
Go deeper on the same topic.
FAQ
Frequently asked.
What is Barrion and how does it enhance website security?
Barrion is a security testing and monitoring platform for engineering teams, and it works in three ways. Passive scanning keeps a continuous, read-only watch over your live web apps and APIs. Codebase scanning connects to GitHub and checks your code for hard-coded secrets, insecure patterns and vulnerable dependencies. AI pentesting goes on the offensive, running agent-driven attacks that prove which vulnerabilities are genuinely exploitable. Every finding comes with a step-by-step fix you can ship right away.
How safe is Barrion to use for security testing?
Passive scanning and codebase scanning are completely safe to run, including against production. Passive scans only read your live app, so we never submit forms, brute-force endpoints or touch anything that changes state, and codebase scanning just reads your repository. AI pentesting is more aggressive by design, since its job is to confirm real exploits, so it runs rate-limited and non-destructive, and you agree the scope with us before it starts.
What types of security issues does Barrion identify?
It depends on the surface. On your live apps, Barrion catches misconfigurations across TLS and HTTPS, security headers, cookie flags, CORS policy, DNS records, email authentication (SPF, DKIM, DMARC), network exposure and the usual web hygiene gaps. In your codebase it finds secrets committed to the repo, insecure code patterns and vulnerable dependencies. AI pentesting surfaces the exploitable stuff, like SQL injection, cross-site scripting and broken access control, each one backed by proof it can actually be exploited.
What specific security checks does Barrion perform?
For live apps it checks TLS and HTTPS configuration, HTTP security headers, cookie flags, CORS policy, DNS and email authentication records, network exposure and common web hygiene issues. In your codebase it looks for hard-coded secrets, insecure patterns and vulnerable dependencies. AI pentesting takes it further by actively chaining requests to confirm exploitable flaws. Whatever the source, findings are ranked by severity and come with clear, step-by-step remediation.
What is Barrion's smart crawling?
Smart crawling automatically discovers the pages and endpoints of your app so scans cover the surface that matters, without you manually listing every URL.
How often does Barrion perform security scans?
You can run a scan manually whenever you want. Continuous monitoring of your live apps runs on its own (weekly and up on Essential, daily on Business), codebase scans can fire on every commit or pull request, and we alert you the moment something new shows up.
Is Barrion suitable for security testing of all business sizes?
Yes. Live-app monitoring, codebase scanning through GitHub and AI pentesting all work just as well for a solo developer as for a startup, a scale-up or an enterprise security team, without adding headcount.
How does Barrion handle data security and privacy during security testing?
Live-app and codebase scans are read-only by default, and we never store or expose sensitive data from your application. AI pentests are rate-limited and non-destructive, built to confirm whether something is exploitable without altering your data or affecting availability.
What if I'm not satisfied with Barrion's security testing service?
Paid plans start with a free trial, and you can cancel anytime. If something isn't right, contact us and we'll make it work for your team.
How does Barrion help with SOC 2, ISO 27001, NIS2, and other compliance frameworks?
Barrion produces audit-ready PDF and CSV reports suitable for SOC 2, ISO 27001, PCI DSS and NIS2, ready to share with auditors, customers and your board.
Anything else? Email contact@barrion.io.
Run a full report on your site.
Free first scan covers every check, no signup needed. Sign up to save the report and turn on continuous monitoring.