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Security Header Generator & Checklist — CSP, HSTS, X-Frame-Options

Configure and generate the standard HTTP security headers — Content-Security-Policy, HSTS, X-Frame-Options, X-Content-Type-Options and others — with each explained in terms of the specific attack it mitigates, rather than a checklist you follow without understanding why.

How to use Security Header Pro

1. Select the security headers you want to configure.
2. Set values for each (like CSP source lists).
3. Review what attack each header mitigates.
4. Copy the generated header configuration.

Frequently asked questions

What does Content-Security-Policy actually protect against?

CSP restricts which sources scripts, styles and other resources can load from, which is one of the most effective mitigations against cross-site scripting (XSS) attacks when configured correctly.

What does X-Frame-Options prevent?

It controls whether your page can be embedded in an <iframe> on another site, which is the primary defense against clickjacking attacks.

Do I need all of these headers?

Not necessarily every one — which headers matter depends on your site's specific risk profile; the explanations help you judge which are relevant rather than blindly applying all of them.

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