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安全标头检查器

评估 HSTS、CSP、X-Frame-Options 及相关响应标头。

请求从德国（DE）发送。

关于此工具

Use the security headers checker to audit HTTP response headers that protect browsers from common attacks. This free tool validates CSP, HSTS, X-Frame-Options, and related controls in one pass.

Teams use it to harden applications, reduce clickjacking exposure, and enforce safer content loading policies. Quick visibility into missing headers makes security remediation faster and more measurable.

常见问题

Which headers are most important to check first?
Start with Content-Security-Policy, Strict-Transport-Security, X-Content-Type-Options, and frame protection controls.
Can missing headers cause real risk?
Yes, absent or weak headers can increase exposure to XSS, clickjacking, and downgrade-related attack patterns.
How often should I run a security headers audit?
Run it after major releases and periodically in CI or monitoring workflows to catch regressions early.