HTTP Security Headers

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Medium

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Easy

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HTTP security headers instruct browsers on how to handle content. Examples: Content-Security-Policy (prevent XSS), X-Frame-Options (prevent clickjacking), Strict-Transport-Security (force HTTPS). Implementing all 12+ headers reduces breach risk by 60-80%. Salary impact: Medium (often paired with other security skills). Mastery takes 2-3 weeks; straightforward but requires understanding threat models.

HTTP Security Headers nima

HTTP security headers are metadata sent by web servers to instruct browsers on how to handle content. Examples: - Content-Security-Policy (CSP): restricts where scripts can be loaded from (prevents XSS)

🔧 VOSITALAR VA EKOSISTEMA

HTTP header analyzersMozilla ObservatoryOWASP Header ChecklistBrowser DevToolsWeb server config (NGINX, Apache)Express/Django middlewareHeader testing toolsSecurity scanner (ZAP, Burp Suite)CSP generatorsPenetration testing tools

💰 Hududiy oylik

Mintaqa	Kichik mutaxassis	Oʻrta darajali	Katta mutaxassis
USA	$65k	$105k	$155k
UK	$40k	$64k	$95k
EU	$44k	$71k	$105k
CANADA	$70k	$115k	$170k

🎓 Sertifikatlar

OWASP Secure Headers Project Mozilla Security Guidelines SANS Web Security

❓ Koʻp soʻraladigan savollar

What's the most important HTTP security header?

Content-Security-Policy (CSP). Prevents XSS by restricting script sources. Browser only runs scripts from whitelisted origins. One CSP prevents 95% of XSS attacks. Second is HSTS (forces HTTPS).

How do I implement CSP without breaking my site?

Start in report-only mode: CSP header sends violations to logging endpoint, doesn't block anything. Review logs for legitimate scripts. Whitelist them gradually. Once satisfied, enable enforcement (blocking mode).

What's the difference between X-Frame-Options and CSP frame-ancestors?

X-Frame-Options: legacy header, simple (DENY, SAMEORIGIN). CSP frame-ancestors: modern, flexible ('self', specific origins). Both prevent clickjacking. Use both for compatibility.

Do I need security headers if I'm using HTTPS?

HTTPS protects in transit (eavesdropping), but not application logic attacks (XSS, clickjacking, CSRF). Security headers protect browser from misusing content. HTTPS + headers = comprehensive.

How do I test if my headers are correct?

Use Mozilla Observatory (automated scan). It rates your headers (A-F). Use browser DevTools to inspect headers. Manual verification: OWASP checklist. Automated: security scanners (ZAP, Burp).

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