HTTP Header Configuration Builder
Design secure, industry-compliant HTTP headers. Configure Content Security Policies (CSP), HSTS timelines, CORS rules, and Cache-Control policies with instant multi-server exports.
Place this code inside your server {} configuration block in nginx.conf, then reload Nginx.
In-Browser HTTP Security Header Configuration
The HTTP Security Header Generator enables web administrators and security professionals to construct hardened HTTP response headers that protect web applications from common web vulnerabilities. Misconfigured headers leave websites exposed to cross-site scripting (XSS), clickjacking, and MIME sniffing attacks.
This utility provides interactive controls for configuring Content Security Policy (CSP), HTTP Strict Transport Security (HSTS), X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy. Users can select security profiles ranging from balanced compatibility to strict zero-trust baselines.
The generator formats headers into ready-to-paste configuration blocks for Nginx, Apache, Cloudflare Workers, and Caddy. All header generation executes locally in browser memory.
Core Tool Capabilities
- Content Security Policy (CSP) Builder: Visually configure default-src, script-src, style-src, img-src, and connect-src directives with nonce and hash options.
- HSTS and Preload Directives: Configure max-age parameters, includeSubDomains flags, and preload submission readiness for HTTPS enforcement.
- Clickjacking Protection: Set X-Frame-Options (DENY, SAMEORIGIN) and frame-ancestors directives to prevent malicious iframe embedding.
- Multi-Server Configuration Syntax: Exports formatted header directives for Nginx (add_header), Apache (.htaccess / Header set), Caddy, and Cloudflare.
Local Browser Privacy
Your files are processed locally on your device. Files are not uploaded, transmitted, or stored on remote servers.
Once the page has loaded, you can disconnect your network connection and continue using this tool offline.
Target Use Cases
- • Web Application Security Hardening
- • Nginx and Apache Configuration
- • Clickjacking and XSS Mitigation
- • Compliance Audit Readiness
Technical Specifications and Platform Limits
Conforms to official web security specifications
Outputs native server configuration syntax
Generates configurations locally without network requests
Your domain names and policy configurations remain confidential
Step-by-Step Workflow
Select Baseline Security Profile
Choose from Balanced, Strict, or API-Only security presets as a starting foundation.
Configure Policy Directives
Customize Content Security Policy origins, HSTS duration, frame permissions, and referrer handling.
Choose Target Server Format
Select your web server environment: Nginx, Apache, Caddy, or Cloudflare Workers.
Copy Header Snippet
Copy the generated configuration block directly into your web server configuration file.
Practical Real-World Use Cases
Web Application Security Hardening
Security engineers improving Mozilla Observatory and SecurityHeaders.com compliance scores from F to A+.
Nginx and Apache Configuration
Sysadmins deploying production websites with standardized security headers across virtual hosts.
Clickjacking and XSS Mitigation
Frontend engineers implementing strict frame-ancestors and script source controls on authentication pages.
Compliance Audit Readiness
Enterprise DevOps teams ensuring web properties satisfy SOC2 and ISO 27001 transport security requirements.
Frequently Asked Questions
- What is the purpose of Content-Security-Policy (CSP)?
- CSP restricts which resource origins (scripts, styles, images) a browser can load, preventing cross-site scripting (XSS) attacks.
- What does HSTS max-age represent?
- HSTS max-age tells browsers how many seconds they must strictly communicate with your domain only over HTTPS (typically 31536000 for one year).
- How do I protect against clickjacking?
- Use X-Frame-Options: DENY or CSP frame-ancestors 'none' to prevent other sites from embedding your pages inside iframes.
- Which web server formats are supported?
- The generator exports native configuration syntax for Nginx, Apache httpd/.htaccess, Caddy, and Cloudflare Workers.
- Are my domain names or server settings transmitted over the internet?
- No. All configuration generation executes entirely inside your client browser.
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