The NewhouseNet HTTP Header & Security Posture Auditor inspects web servers to verify hardening compliance, redirect chains, cookie isolation, and latency profiles.
🎯 0–100 Security Posture Grading
Evaluates HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, and Permissions-Policy to award letter grades (A+ to F).
🔄 Full Hop Redirect Tracking
Follows HTTP 301, 302, 307, and 308 redirect chains step-by-step, capturing intermediate location headers and status transitions.
🍪 Cookie Security Auditing
Detects all Set-Cookie directives and flags missing HttpOnly, Secure, and SameSite protections to prevent token theft.
🛠️ Missing Headers Remediation
Provides threat impact analysis, risk ratings, and instant copyable server snippets (NGINX, Apache, PHP) for all missing headers.
Security Headers Reference & Hardening Guide
HTTP Security Headers are instruction flags returned by your web server that tell modern browsers how to handle content safely, preventing cross-site scripting (XSS), clickjacking, protocol downgrades, and data leakage.
How to Apply Security Headers in Microsoft IIS
You can configure security headers in Microsoft IIS either via your site's web.config XML file or through the IIS Manager GUI:
Method 1: web.config (Recommended)
Paste the <customHeaders> directives inside <system.webServer> → <httpProtocol> in your website root's web.config.
Method 2: IIS Manager GUI
Open IIS Manager → Select Site → Double-click HTTP Response Headers → Click Add... in the Actions pane → Enter Header Name & Value.
Enforces secure HTTPS connections and prevents SSL stripping attacks.
Why It Matters / Risk of Missing:Without HSTS, attackers performing active Man-in-the-Middle (MitM) attacks on unencrypted networks (e.g. public Wi-Fi) can intercept initial HTTP requests, strip TLS encryption, and steal session tokens, credentials, or cookies.
Restricts script execution sources to prevent Cross-Site Scripting (XSS).
Why It Matters / Risk of Missing:Leaves the application vulnerable to Cross-Site Scripting (XSS), malicious script injection, arbitrary iframe framing, and unauthorized data exfiltration.
Guards against Clickjacking by denying embedding in foreign iframes.
Why It Matters / Risk of Missing:Enables Clickjacking / UI Redressing attacks, where an attacker tricks authenticated users into clicking buttons or submitting transactions unwittingly inside invisible iframes.
Why It Matters / Risk of Missing:Browsers may attempt to detect (sniff) content types and execute benign files (like user-uploaded image attachments or text files) as JavaScript, resulting in stored XSS.
Protects user privacy by controlling outgoing referrer information.
Why It Matters / Risk of Missing:Full URLs containing session IDs, password reset tokens, internal query parameters, or personal identifiers may leak to third-party CDNs, advertisers, and external links.
Disables unused browser hardware features (camera, microphone, geolocation).
Why It Matters / Risk of Missing:Compromised or malicious third-party scripts/iframes might request device sensors like microphones, cameras, or geolocation without your explicit restriction.
Isolates browsing context to protect against Spectre-style side-channel leaks.
Why It Matters / Risk of Missing:Malicious cross-origin popups or window references can potentially retain access via window.opener or measure execution timings for Spectre-based memory disclosure.