Secure Header Scanner
Analyze Website Security Headers in Seconds
Fast Analysis
Security Grading
CSP & HSTS Check
Why Check Security Headers?
Security headers protect against XSS, clickjacking, and other web vulnerabilities. HSTS enforces HTTPS, CSP prevents code injection, and other headers strengthen your site's security posture.
Security Header Check
Enter a domain or URL to analyze its HTTP security headers and get security recommendations.
Tool Features
Comprehensive security header analysis with detailed recommendations
Security Header Analysis
Comprehensive analysis of HTTP security headers
CSP & HSTS Validation
Check Content Security Policy and HSTS configuration
Performance Insights
Response time and protocol analysis
Security Grading
Get an A-F security grade with detailed scoring
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Discover similar utilitiesFrequently Asked Questions
Security headers protect websites from hacks such as XSS, clickjacking, MITM attacks, and data leaks. They add extra safety rules to your website and browser.
This tool checks important security headers such as: HSTS, CSP, X-Frame-Options, X-XSS-Protection, X-Content-Type-Options, Referrer-Policy, Permissions-Policy, Expect-CT, and more.
Yes. The tool is completely free for everyone.
No. The tool shows recommendations. You still need to update your server or hosting configuration to fix missing headers.
Yes. You can test any public website by entering its domain name.
HSTS forces browsers to always load your website using HTTPS. It prevents downgrade attacks and improves security. You can check HSTS settings using our HSTS Checker tool.
CSP (Content Security Policy) reduces the risk of XSS attacks by controlling which resources can be loaded by your website. Test your CSP configuration with our CSP Checker tool.