Free Website Security Scan
Free tool
Passive scan of your live URL in 60 seconds. Checks TLS, security headers, CSP, cookies, CORS, and SPF/DKIM/DMARC, with step-by-step fixes for each finding.
- Full security assessment
- Detailed security report
- Actionable recommendations
- Risk severity scoring
No credit card requiredProduction-safe (100% passive)No setup or code required
Used by 5,000+ developers and engineering teams
What to do with your results
- Prioritize high-impact fixes (HSTS, CSP baselines, cookies) first
- Assign owners and track remediation to completion
- Set up recurring scans to maintain posture after fixes
What this scan covers
- HTTP security headers and CSP policy quality
- TLS/HTTPS configuration and certificate health
- Cookies (HttpOnly/Secure/SameSite) and basic CORS posture
How Barrion verifies this
Barrion runs a passive, read-only sweep against your public surface. We fetch your site over HTTPS, follow redirects, and inspect the response headers, TLS handshake, and certificate chain the same way a browser would. Nothing is submitted, nothing is exploited, and no authenticated routes are touched.
On top of that baseline we resolve DNS records (MX, SPF, DKIM selectors, DMARC, CAA, DNSSEC) and probe cookie flags, CORS preflight responses, and Content Security Policy directives against the OWASP secure-defaults profile. Each finding is normalized to a severity and mapped to a concrete configuration change so you know exactly what to edit.
Because the scan is fingerprint-based rather than intrusive, it's safe to run against production on every deploy. Schedule it weekly or daily from your dashboard to catch drift from CDN changes, new third-party scripts, or accidental header removals before they reach users.
Why regular scans matter
Websites change frequently. Deploys, CDN tweaks, and third-party scripts can introduce drift. Regular scanning catches regressions early so you can fix issues before they become incidents. Use Barrion's continuous monitoring to detect any regressions.
Tool-specific questions
What is a website security scan?
A website security scan checks your live site and public footprint for common vulnerabilities and misconfigurations: security headers, TLS/HTTPS, cookies, CORS, email (SPF/DKIM/DMARC), and exposure risks. Barrion runs production-safe (passive) scans with no code or server access. You get a detailed report with step-by-step fixes in under 60 seconds.
Is this security scan intrusive or harmful?
No, our security scan is completely non-intrusive and safe. All checks are passive - we only perform read-only analysis of publicly accessible responses and headers. We never attempt to exploit vulnerabilities, access private data, or perform any actions that could harm your website or infrastructure.
How long does a comprehensive security scan take?
Most scans complete within 60 seconds for single-site checks. Complex websites with multiple pages may take 2-3 minutes. Our scanning is optimized for speed while maintaining thorough coverage of all security aspects.
Does this replace a professional penetration test?
No, this automated scan complements but doesn't replace professional penetration testing. Use it for regular security monitoring, initial assessments, and continuous security validation. Combine with manual testing for comprehensive security coverage.
What types of vulnerabilities can this scan detect?
Our scan detects configuration issues, security header problems, TLS/SSL misconfigurations, cookie security issues, CORS problems, and basic application vulnerabilities. It covers the most common web security issues that affect the majority of websites.
What does 'passive scanning' mean and what specific checks are performed?
All our scans run passively, meaning we only analyze publicly available information without attempting any active exploitation. Our comprehensive security testing covers TLS/HTTPS configuration and certificate health, security headers (HSTS, CSP, X-Frame-Options, etc.), CORS policy analysis, cookie security (HttpOnly, Secure, SameSite), email security (SPF, DKIM, DMARC), DNS security (DNSSEC, CAA records), network exposure assessment, and application vulnerability detection. Every check is designed to be safe and non-intrusive.
How often should I run security scans?
Run scans after any major changes, deployments, or security updates. For ongoing monitoring, weekly scans are recommended. Use Barrion's continuous monitoring for scheduled scans, weekly on Essential and daily on Business, and instant alerts when new issues are detected.
Can I use this for compliance auditing?
Yes, our scan results can help with compliance requirements like PCI DSS, HIPAA, and SOC 2. The reports provide evidence of security controls and can identify gaps in your security posture. Supplement with internal assessments for complete compliance coverage.
What should I do with the scan results?
Prioritize high-impact issues first (HSTS, CSP, cookie security), assign remediation tasks to team members, track progress to completion, and set up recurring scans to maintain security posture. Use our actionable recommendations for efficient fixes.
Does the scan work with all types of websites?
Yes, our scan works with any publicly accessible website including static sites, dynamic applications, e-commerce platforms, and web services. It analyzes the security configuration regardless of the underlying technology stack.
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.
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
Content Security Policy (CSP) Checker
Analyze your CSP for unsafe directives and strengthen your policy with best practices.
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 two ways. Passive scanning keeps a continuous, read-only watch over your live web apps and APIs. 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 is 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. 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 approve the exact scope before a single request is sent.
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. 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?
Barrion covers two surfaces. Passive web scanning is read-only and safe to point at production, and runs 35+ checks: transport security (HTTPS, HSTS, TLS version, cipher suites, certificate expiry, hostname and chain validity, OCSP stapling), HTTP response headers (Referrer-Policy, Permissions-Policy, X-Content-Type-Options, Content-Type, server information disclosure), CSP and framing (Content-Security-Policy, bypass detection, Trusted Types, X-Frame-Options), cross-origin policy (COOP, COEP, CORP and the full CORS header set), cookie flags and anti-CSRF tokens, mixed content, vulnerable JavaScript libraries, DNS records including DNSSEC and CAA, email authentication (SPF, DKIM, DMARC), open ports and subdomain takeover. AI pentesting is the aggressive surface: it actively chains requests to confirm exploitable flaws such as SQL injection, cross-site scripting and broken access control, and returns reproducible proof for each one. Findings from both are ranked by severity and come with 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 on Essential, daily on Business), and we alert you the moment something new shows up.
Is Barrion suitable for security testing of all business sizes?
Yes. Live-app monitoring and AI pentesting work just as well for a solo developer as for a startup, a scale-up or an enterprise security team, and it fits alongside the tools you already run.
How does Barrion handle data security and privacy during security testing?
Live-app 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?
You can cancel anytime in the dashboard, and paid plans carry a 14-day refund window from the first charge. 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.
Keep it covered
Fix it once, then watch it stay fixed.
A pentest proves what is exploitable today. Continuous monitoring re-checks this tool's results on a schedule and alerts you the moment a deploy undoes the fix.
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 from $99/mo
Pentest credits every month, +17 advanced checks, weekly continuous monitoring, email alerts, GitHub fix PRs, audit-ready PDFs for SOC 2 / ISO 27001 / PCI.