Free X-XSS-Protection Header Checker (Deprecated)
Identify deprecated X-XSS-Protection usage and move to modern mitigations like CSP and Trusted Types.
Learn safe removal and replacement strategies.
- Deprecated header check
- Removal guidance
- Modern mitigations
"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.
Why is X-XSS-Protection deprecated?
It was inconsistent across browsers and created false security signals. Modern defenses rely on CSP, Trusted Types, and proper escaping/sanitization.
What to use instead
- Adopt a strict CSP with nonces/hashes
- Enable Trusted Types where supported
- Sanitize/escape user content
Tool-specific questions
Will removing it break anything?
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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