Toolkit

Security header builder

Toggle the headers you need and copy a ready-to-deploy snippet for your platform. Defaults follow OWASP’s Secure Headers project.

Transport

HSTS

Strict-Transport-Security

max-age (seconds)includeSubDomainspreload

Content-Security-Policy

CSP

Enable CSP

default-srcscript-srcstyle-srcimg-srcfont-srcconnect-srcframe-srcobject-srcbase-uriform-actionframe-ancestorsupgrade-insecure-requests

Framing & typing

X-Frame-OptionsX-Content-Type-Options: nosniffReferrer-Policy

Permissions-Policy

Block browser features

Enable Permissions-Policy

Highlighted features are disabled for the whole origin.

Cross-origin isolation

Cross-Origin-Opener-PolicyCross-Origin-Resource-Policy

Output

8 headers

{
  "headers": [
    {
      "source": "/(.*)",
      "headers": [
        {
          "key": "Strict-Transport-Security",
          "value": "max-age=63072000; includeSubDomains; preload"
        },
        {
          "key": "Content-Security-Policy",
          "value": "default-src 'self'; script-src 'self'; style-src 'self'; img-src 'self' data:; font-src 'self'; connect-src 'self'; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; upgrade-insecure-requests"
        },
        {
          "key": "X-Frame-Options",
          "value": "DENY"
        },
        {
          "key": "X-Content-Type-Options",
          "value": "nosniff"
        },
        {
          "key": "Referrer-Policy",
          "value": "strict-origin-when-cross-origin"
        },
        {
          "key": "Permissions-Policy",
          "value": "camera=(), microphone=(), geolocation=(), payment=(), usb=()"
        },
        {
          "key": "Cross-Origin-Opener-Policy",
          "value": "same-origin"
        },
        {
          "key": "Cross-Origin-Resource-Policy",
          "value": "same-origin"
        }
      ]
    }
  ]
}