Scan Your Websitefor Missing Security Headers
Easily identify missing or misconfigured HTTP security headers like CSP, HSTS, X-Frame-Options, and more. Get a score and remediation tips in seconds.
About Our Security Headers Analyzer
The CyberHeaders Security Headers Analyzer checks your website's HTTP response headers and identifies missing or misconfigured security measures. These headers help protect against XSS, clickjacking, and other web-based attacks. Our tool provides a comprehensive analysis to help you secure your web applications according to industry best practices.
Why Security Headers Matter
Attack Protection
Shield your users from XSS, clickjacking, and other common web attacks
Compliance
Meet security best practices and compliance requirements
Trust & SEO
Improve user trust and potentially boost search rankings
Data Security
Reduce the risk of data breaches and information leaks
Key Security Headers & Their Importance
Content-Security-Policydefault-src 'self'X-Frame-OptionsSAMEORIGINStrict-Transport-Securitymax-age=31536000; includeSubDomainsX-Content-Type-OptionsnosniffReferrer-Policystrict-origin-when-cross-originPermissions-Policygeolocation=(self), microphone=()Need Help Fixing Header Issues?
If the analyzer detects missing or misconfigured headers, follow our comprehensive Security Header Fixing Guide for step-by-step instructions tailored to your server environment.
View Fixing GuideComprehensive Security Headers Guide
Content-Security-Policy (CSP)
The Content Security Policy header is one of the most powerful security headers available. It helps prevent XSS attacks by specifying which dynamic resources are allowed to load.
Content-Security-Policy: default-src 'self'; script-src 'self' https://trusted.cdn.com;
Best Practice: Start with a restrictive policy and gradually expand it. Use CSP in report-only mode initially to monitor potential issues.
Strict-Transport-Security (HSTS)
HSTS ensures browsers only connect to your site over HTTPS, preventing SSL stripping attacks.
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
OWASP Recommendation: Use a minimum max-age of 1 year (31536000 seconds) and include all subdomains. Consider preloading for maximum protection.
X-Frame-Options
Protects against clickjacking attacks by controlling whether your site can be framed.
X-Frame-Options: SAMEORIGIN
Implementation Tip: Use SAMEORIGIN unless you specifically need to allow framing from other trusted domains.
X-Content-Type-Options
Prevents browsers from MIME-sniffing a response away from the declared content-type.
X-Content-Type-Options: nosniff
Referrer-Policy
Controls how much referrer information is included with requests.
Referrer-Policy: strict-origin-when-cross-origin
Privacy Benefit: This policy is recommended for most sites as it strikes a balance between functionality and privacy.
Enhance Your Website Security Today
Trusted by Security Professionals
Don't just take our word for it. Here's what our users say about our security header scanner.
This scanner helped us identify critical security gaps in our headers that other tools missed. Highly recommended!
As a freelance developer, this tool has become an essential part of my security checklist for every client project.
The detailed PDF reports make it easy to share findings with our non-technical stakeholders and get buy-in for security improvements.