📋 Nagłówki HTTP

Sprawdź nagłówki HTTP i ocenę bezpieczeństwa

What Are HTTP Security Headers?

HTTP security headers are directives sent by web servers that instruct browsers how to handle content. They provide an additional layer of security against common web vulnerabilities.

Essential Security Headers

  • Strict-Transport-Security (HSTS): Forces HTTPS connections Forces HTTPS connections
  • Content-Security-Policy (CSP): Prevents XSS and injection attacks Prevents XSS and injection attacks
  • X-Frame-Options: Protects against clickjacking Protects against clickjacking
  • X-Content-Type-Options: Prevents MIME sniffing Prevents MIME sniffing
  • Referrer-Policy: Kontroluje informacje o stronie odsyłającej Controls referrer information
  • Permissions-Policy: Ogranicza funkcje przeglądarki Restricts browser features

Zrozumienie naszej oceny bezpieczeństwa

Oceniamy twoje nagłówki od A+ do F na podstawie obecności i konfiguracji krytycznych nagłówków bezpieczeństwa. Ocena A+ oznacza, że wszystkie zalecane nagłówki są poprawnie skonfigurowane.

HTTP Security Headers Checker analyzes security-related response headers protecting against XSS, clickjacking, MIME sniffing, and protocol downgrade attacks.

Key Facts

  • Only 10% of top 1M sites have proper CSP
  • HSTS preloading protects from first visit
  • X-Frame-Options prevents 90%+ of clickjacking
  • Proper headers prevent 80% of common web attacks

Frequently Asked Questions

What is Content-Security-Policy?

CSP controls which resources browsers can load. The most powerful defense against XSS attacks.

What is HSTS?

Forces browsers to always use HTTPS, preventing protocol downgrade attacks and cookie hijacking.

Why low security grade?

Usually missing CSP, HSTS, X-Frame-Options, X-Content-Type-Options, or Referrer-Policy headers.

How to add security headers?

In Apache .htaccess, Nginx server block, or CDN dashboard (Cloudflare, Vercel, Netlify).

Related Security Tools

🔬 HTTP Debug & URL Inspector 🔒 Certyfikat SSL 📌 Generator Pinningu SSL 📡 Ping