Website Security Headers Auditor & Grading

Audit HTTP security headers (HSTS, CSP, X-Frame-Options, X-Content-Type-Options, Referrer-Policy, Permissions-Policy) with comprehensive A+ to F grading.

Input Parameters

Currency:

Calculation Result

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Enter values to see real-time calculation.

About Security Headers Auditor (A+ to F Grading)

The Security Headers Auditor (A+ to F Grading) is a high-speed diagnostic and analysis tool built for webmasters, SEO professionals, developers, and network administrators. Operating with precision network queries, it inspects critical endpoint parameters in real time to ensure high uptime, optimal performance, and robust search visibility.

Mathematical Formula & Calculation Method

📐 Calculation Formula

Diagnostic Protocol: RFC Compliant Security Headers Auditor (A+ to F Grading) Inspection

This utility performs structured protocol checks and formats all response codes, latencies, and metadata directly in your browser.

Step-by-Step Calculation Examples

Example #1

Security Headers Auditor (A+ to F Grading) Live Query

Scenario: Inspecting endpoint parameters on standard hostnames.

Given Inputs:

Target: example.com

Working: Real-time protocol query and metadata inspection

Calculated Result: Validated live response and diagnostic breakdown

How to Use the Security Headers Auditor (A+ to F Grading)

Enter website URL.
Click Audit Security Headers.
View overall letter grade and missing header remediation advice.

Common Real-World Use Cases

Website Health & Uptime Diagnostics

Diagnose server misconfigurations, connectivity timeouts, and DNS resolution failures.

Search Engine Optimization (SEO)

Ensure bot crawlability, canonical URLs, and mobile responsiveness for top search engine rankings.

Security & SSL Compliance

Audit network headers, cipher strengths, and cryptographic certificates to prevent vulnerabilities.

Key Features & Capabilities

A+ to F scoring algorithm.
Individual header compliance breakdown.

Technical Architecture & Privacy

Security Headers Auditor (A+ to F Grading) is engineered with a focus on performance, mathematical accuracy, and maximum user privacy. Operating with a high-performance, rate-limited backend infrastructure, this utility delivers real-time network diagnostics and deep protocol analysis backed by strict SSRF filtering and automated sanitization.

Frequently Asked Questions

How do I achieve an A+ security headers grade? ▾

Implement valid HSTS with preload, strict Content-Security-Policy, X-Frame-Options: DENY, and X-Content-Type-Options: nosniff.