Security & Edge

Cloudflare _headers and Security Headers Generator

This Cloudflare _headers and security headers generator builds hardened edge configuration files for Cloudflare Pages, Workers, and reverse proxy zones. Engineered for frontend architects, SEO specialists, and web application security teams, the generator assembles compliant HTTP response headers including Strict-Transport-Security (HSTS), Content-Security-Policy (CSP), Permissions-Policy, X-Content-Type-Options, and Referrer-Policy. Configure your security policies visually below to generate copy-ready Cloudflare _headers file rules and raw HTTP response headers that protect visitor privacy without breaking critical search crawler access.

Security Header Directives

Configure production headers for Cloudflare Pages, Workers, or origin proxies

Strict-Transport-Security (HSTS)

Max-Age (seconds):

includeSubDomainspreload (Chrome HSTS List)

X-Frame-Options (Clickjacking)

X-Content-Type-Options: nosniff

Referrer-Policy:

Content-Security-Policy (CSP Starter):

Generated Cloudflare _headers File

/*
  Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
  X-Content-Type-Options: nosniff
  X-Frame-Options: SAMEORIGIN
  Referrer-Policy: strict-origin-when-cross-origin
  Permissions-Policy: geolocation=(), microphone=(), camera=()
  Content-Security-Policy: default-src 'self'; script-src 'self' 'unsafe-inline' https:; style-src 'self' 'unsafe-inline'; img-src 'self' data: https:; font-src 'self' data:; connect-src 'self' https:; frame-ancestors 'self'; object-src 'none'; base-uri 'self'

What This Tool Does Not Check

This generator creates valid header syntax and policy directives. It does not test whether external asset domains declared in your Content-Security-Policy are active, nor does it guarantee that third-party analytics or payment iframes will not be blocked by strict framing rules.

Related Technical SEO Workflows

Combine your edge security policies with crawler indexation rules using our tool to:

generate X-Robots-Tag response headers

Ensure HTTPS canonicalization happens alongside your edge headers with our tool to:

build edge bulk redirect rules

Read comprehensive advice on edge performance and server configuration in our guide on:

core technical SEO optimization

Scan your site for missing headers and metadata issues using our tool to:

run an on-page technical audit

Frequently Asked Questions

Where do I place the _headers file in Cloudflare Pages?

In Cloudflare Pages, place the _headers plain-text file in your project build output directory (e.g., out, public, or dist). Cloudflare reads this file during deployment and attaches the specified headers to matching HTTP responses at the edge.

Does implementing strict security headers impact technical SEO?

Yes, positively. Search engines favor HTTPS with HSTS and strict transport security as trust signals. However, ensure that X-Robots-Tag or restrictive Content-Security-Policy directives do not inadvertently block Googlebot, Bingbot, or essential schema assets.

What is the recommended max-age for HSTS preload submission?

To qualify for Google Chrome HSTS Preload list inclusion, your Strict-Transport-Security header must specify a max-age of at least 31536000 seconds (1 year), includeSubDomains, and the preload directive.

How do I test my generated security headers after deployment?

You can inspect response headers using your browser Developer Tools Network tab, run curl -I https://yourdomain.com in your terminal, or use online scanners like SecurityHeaders.com to verify an A+ grade rating.

Continuous SEO Intelligence

Upgrade to the Pro Plan ($79/mo)

Run automated daily edge header checks and monitor crawler response codes with the Pro Plan ($79/mo).

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