How do I fix the strong-hsts-policy audit test in WebCare Pro Auditor?

Set Strict-Transport-Security header with max-age=63072000 (2 years). Add includeSubDomains and preload directives. Ensure all subdomains (including www, api, blog) serve valid HTTPS. Submit domain to the global Chrome/Firefox/Safari HSTS Preload list at hstspreload.org.

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Standards StandardsTest ID: strong-hsts-policyVerified Specification

Strict-Transport-Security (HSTS) with Preload Deployment

Deploying Strict-Transport-Security (HSTS) with max-age >= 31536000, includeSubDomains, and preload to completely eliminate SSL stripping attacks.

Why this matters for your SEO & AI Visibility:

HSTS guarantees that web browsers refuse to establish insecure HTTP connections, protecting confidential cookies and user credentials.

Step-by-Step Remediation Guide

4 Actionable Steps

1Set Strict-Transport-Security header with max-age=63072000 (2 years).
2Add includeSubDomains and preload directives.
3Ensure all subdomains (including www, api, blog) serve valid HTTPS.
4Submit domain to the global Chrome/Firefox/Safari HSTS Preload list at hstspreload.org.

Production Implementation Code

plaintext

Copy and deploy this production snippet into your application to satisfy the audit test.

strong-hsts-policy configuration snippet

Strict-Transport-Security: max-age=63072000; includeSubDomains; preload

Technical Architecture & In-Depth Details

Preventing Man-in-the-Middle Attacks

Standard HTTP-to-HTTPS redirects leave users vulnerable during the initial plaintext request. By enrolling in HSTS Preload, browsers hardcode HTTPS for your domain before the very first request is sent.