Security Headers Test - CSP, HSTS & X-Frame-Options
ToolSecurity response headers.
Security Headers Test - CSP, HSTS & X-Frame-Options
Review HTTP security headers and related signals to reduce browser attack surface.
Ghi chú
Missing headers can enable clickjacking, MIME sniffing, or downgrade risks.
Use CSP to restrict script sources and reduce XSS impact; validate after changes.
HSTS requires HTTPS on all subdomains; set carefully to avoid lockouts.
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Câu hỏi thường gặp
Which headers matter most?
CSP, HSTS, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy.
Do security headers affect performance?
Usually minimal, but overly strict rules can break assets or embeds.