Free HTTPS & HSTS Checker

Verify HTTPS redirects, HSTS policy, and preload readiness.
Improve transport security and prevent protocol downgrade attacks.

  • HTTPS redirects
  • HSTS max-age
  • Preload readiness
No credit card requiredNon-intrusive, passive scanningNo setup required

"The ROI has been exceptional. We've prevented three potential security incidents in the first quarter alone, and the platform pays for itself in risk mitigation."

Elena Rodriguez

VP of Engineering

"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."

Marcus Anderson

CTO

"Implementation was seamless and continuous monitoring gives our team confidence. We've seen a 40% reduction in security incidents since adopting Barrion."

David Kim

Chief Security Officer

"The automated scanning and detailed reporting have transformed our security posture. We've reduced our vulnerability remediation time from weeks to days."

Priya Sharma

Security Director

"Barrion's passive scanning approach means zero impact on our production systems while providing security insights. Perfect for our high-traffic environment."

Robert Taylor

DevOps Lead

"The reporting feature saved us weeks of manual work during our SOC 2 audit. The automated report generation is a game-changer."

Michael Brown

Compliance Officer

"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."

Sarah Chen

Head of Security

"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."

Oskar Nilsson

Tech Lead

"The detailed vulnerability reports and remediation guidance have been invaluable. Our development team can now address issues proactively rather than reactively."

Amanda Foster

Engineering Manager

"Barrion's real-time alerts have helped us catch and fix vulnerabilities before they become critical issues. The peace of mind is worth every penny."

Jennifer Martinez

Security Architect

"We needed a solution that could scale with our growing infrastructure. Barrion has exceeded expectations and become an essential part of our security toolkit."

Lisa Wang

Infrastructure Director

Enterprise-Grade Security
Trusted Worldwide
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How it works

Scan in three simple steps

Fast, safe, non-intrusive checks with actionable results.

1

Start scan

Enter your URL, and click the start scan button to begin.

2

Scan runs

Barrion performs passive, read-only security checks with minimal site impact.

3

Take Action

Fix issues with step-by-step guidance and enable monitoring for continuous protection.

What is HTTPS & HSTS?

HTTPS encrypts traffic. HSTS forces browsers to use HTTPS for your domain, preventing downgrade and cookie leakage over HTTP.

What this checker validates

  • HTTPS redirect chain and mixed HTTP hops
  • HSTS max-age, includeSubDomains, preload token
  • Preload list readiness criteria

How to fix common failures

  • Redirect HTTP to HTTPS at the edge (single hop)
  • Set max-age ≥ 31536000, and add includeSubDomains and preload
  • Verify subdomains are HTTPS‑ready before preloading

Tool-specific questions

What max-age for preload?

≥ 31536000 seconds with includeSubDomains and preload token.

Is HSTS risky?

Preload is safe once all subdomains serve HTTPS. Ensure readiness first.

Do I need both www and apex?

Yes. Enable HSTS on the canonical domain that users visit and redirect consistently.

How do I become HSTS preload-ready?

Serve HTTPS everywhere, set max-age ≥ 31536000 with includeSubDomains and preload, verify subdomains, and submit to the Chromium preload list.

Why Choose Barrion?

Real-Time Results

Instant security analysis with detailed reports, giving you an immediate security overview

Comprehensive Checks

Multiple best-practice security checks in a single scan, for broad coverage

Actionable and Effective

Clear recommendations for fixes, helping you improve your security quickly and effectively

General questions

Frequently Asked Questions

Find answers to common questions about Barrion.
If you have any other questions, feel free to reach out!

Trusted by IT Professionals

IT professionals worldwide trust Barrion for comprehensive vulnerability detection.
Get detailed security reports with actionable fixes in under 60 seconds.

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Barrion delivers automated security scans and real-time monitoring to keep your applications secure.

Contact Us

Have questions or need assistance? Reach out to our team for support.

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