Strict-Transport-Security header evidence
Free tool
Check browser security headers on a public website.
Security headers help browsers handle transport security, framing, referrer behavior, and script policy. SiteLeak checks whether common public headers are present and includes the evidence in the report.
Customer-path evidence this page checks
Content-Security-Policy header evidence
X-Frame-Options or frame-ancestor protection signals
Referrer-Policy header evidence
Useful for trust maintenance
The report lists missing or weak browser header signals with source URL evidence.
No compliance certification
The checker does not certify security, privacy, or regulatory compliance.
Questions this scan can answer
Does this prove my site is secure?
No. It checks a focused set of public HTTP headers and should be used alongside broader security review.
Can it run without a security tool account?
Yes. The free check uses public HTTP response evidence and does not require credentials.