Security Headers Analyzer

Measure HTTP header security offline; score and review gaps in CSP, HSTS, X-Frame-Options, and related headers before release checks for launch readiness.

Security Headers Analyzer

Analyzes security headers such as CSP, HSTS, X-Frame-Options, and Referrer-Policy in-browser. Header data never leaves your device.

What is this tool?

This tool evaluates response headers from a security perspective, flags missing or weak headers, and provides actionable recommendations.

The tool is designed to simplify technical workflows for end users. It follows an offline, privacy-first, in-browser flow without server-side uploads.

How to use

  1. Paste your response headers.
  2. Run analysis and review score/findings.
  3. Apply recommendations to server configuration.

Privacy promise

Header input is processed only in-browser. It is not uploaded or stored.

This approach is especially useful for users who need low-latency processing and tighter data control.

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Use these links to continue into tools that are commonly used in the same workflow. Each one points to a related step or a similar problem space.

Use cases and comparison

This section helps you quickly decide when to use this tool and how it differs from nearby alternatives.

Best-fit scenarios

  • Technical workflows that require rapid iteration
  • Cases where you need processing without sending data to external services
  • Repeatable operations that can be standardized across teams

How it differs

.htaccess Generator: A complement for translating header-analysis findings into server rule configuration.

JWT Decoder / Signer: Combines token validation and header hardening in application security workflows.

FAQ