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Générateur d'En-Têtes de Sécurité — Outil en ligne gratuit

CSP + HSTS + X-Frame + Permissions-Policy + plus

Génère un ensemble complet d'en-têtes de sécurité : CSP, HSTS, X-Frame-Options, X-Content-Type, Referrer-Policy, Permissions-Policy. Pour Apache/nginx/Cloudflare/Netlify.

Site setup

Headers to include

CSP customization

📄 Generated config

↗ Test at securityheaders.com
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En savoir plus

Security Headers Builder

Generate complete security headers stack: CSP, HSTS, X-Frame-Options, X-Content-Type, Referrer-Policy, Permissions-Policy. Output for Apache/nginx/Cloudflare/Netlify/Vercel.

How to use this tool

  1. 1

    Configure CSP + headers

    Toggle each header + customize.

  2. 2

    Pick your platform

    Apache / nginx / Cloudflare / Netlify / Vercel.

  3. 3

    Copy + deploy

    Paste into config / redirects / headers file.

Frequently Asked Questions

Why do I need security headers?
Modern browsers respect security headers to defend against XSS, clickjacking, MIME-sniffing, mixed content, and more. Properly configured: A+ on securityheaders.com (Scott Helme). Bad config: A or worse, exploitable. Site running without security headers in 2026 is asking for trouble.
CSP — too strict or too loose?
"unsafe-inline" + "unsafe-eval" defeat XSS protection. Strict CSP requires nonce or hash for inline scripts — work, but right move. Most starter CSPs are too loose (defeat purpose). Modern frameworks (Astro, Next.js) emit nonces; use them.
HSTS preload — should I?
HSTS = Strict-Transport-Security. Preload list = browsers force HTTPS even on first visit. ONLY add to preload list when 100% sure all subdomains support HTTPS. Removal from preload list takes weeks. Start: max-age=31536000 (1 year), no preload. Add preload after 1 month verified.

À retenir

  • Security Headers Builder is a free, browser-based seo & web tool — csp + hsts + x-frame + permissions-policy + more.
  • Non signup, no downloads, no file uploads — your data stays on your device.
  • Works on desktop, tablet, and mobile. Install as a PWA for offline access.

How to Use Security Headers Builder

  1. Open the tool: Launch Security Headers Builder on Outilolis — no account or download needed.
  2. Enter your data: Paste text, enter values, or select a file directly in your browser.
  3. Get instant results: Everything is processed locally — results appear immediately.
  4. Copy or download: Save your output or share it. Bookmark for quick access next time.

Security Headers Builder — Quick Facts

Prix
Gratuit — sans limites, sans filigrane, sans paywall
Confidentialité
100% dans le navigateur — aucune donnée n’est envoyée à un serveur
Plateforme
Tout navigateur moderne — desktop, tablette ou mobile
Catégorie
SEO & Web Outils on Outilolis
Hors ligne
Works offline after first visit (Progressive Web App)
CaractéristiqueDétails
OutilSecurity Headers Builder
CatégorieSEO & Web
Inscription requiseNon
Téléversement de fichierAucun — traité dans le navigateur
Compatible mobileEntièrement adaptatif
CoûtGratuit pour toujours

Why Use Security Headers Builder?

You should try Security Headers Builder for a quick, private way to csp + hsts + x-frame + permissions-policy + more. All processing happens in your browser. Your files and data never leave your device. According to web.dev, client-side processing is the gold standard for privacy.

On the other hand, dedicated APIs or desktop tools suit batch processing better. They also handle server-side automation. For everyday tasks, browser tools offer the best speed, privacy, and convenience.

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100% Confidentialité. Cet outil fonctionne entièrement dans votre navigateur. Vos données ne sont jamais envoyées à un serveur.