Free Cookie Security Checker
Audit cookies for HttpOnly, Secure, SameSite and Partitioned attributes.
Reduce session theft and cross-site leakage with proper cookie settings.
- HttpOnly & Secure flags
- SameSite settings
- Partitioned cookies
"Barrion's security scanning has helped us implement best security practices efficiently, saving us countless hours."
Sarah Chen
Head of Security
"We identified and fixed critical vulnerabilities before our platform launch, saving us from potential data breaches."
Marcus Anderson
CTO
"Barrion gives us peace of mind, knowing we're notified of any security issues. Exactly what our team needed."
Oskar Nilsson
Tech Lead
Scan in three simple steps
Fast, safe, non-intrusive checks with actionable results.
Start scan
Enter your URL, and click the start scan button to begin.
Scan runs
Barrion performs passive, read-only security checks with minimal site impact.
View results
See security findings with prioritized, actionable recommendations.
What is cookie security?
Cookie security ensures sensitive cookies (like session tokens) are protected with HttpOnly, Secure, SameSite and, when needed, Partitioned attributes.
What this checker validates
- HttpOnly and Secure status on cookies
- SameSite=Lax/Strict for CSRF mitigation (or None with Secure)
- Partitioned attribute for third‑party contexts (CHIPS)
How to fix common failures
- Mark auth cookies as HttpOnly so they are never accessible to JS
- Set Secure on all cookies over HTTPS
- Use SameSite=Lax by default, and Strict for highly sensitive areas
Tool-specific questions
Is SameSite=None safe?
When to use Partitioned?
Should JWTs be in cookies or storage?
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
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- Copyable examples
