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security-headers

Analyze and validate HTTP security headers for web applications.

27|4|Updated Oct 20, 2025
Search Tags:#security headers#penetration testing#csp#web security#cors#hsts#http headers
One-click install
npx skills add https://github.com/CuriousLearner/devkit --skill security-headers-curiouslearner
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: security-headers
Source: https://github.com/CuriousLearner/devkit/tree/main/skills/security-headers
Command: npx skills add https://github.com/CuriousLearner/devkit --skill security-headers-curiouslearner

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps you identify and fix critical security misconfigurations in your web application's HTTP headers, protecting against common web vulnerabilities.

Core Features & Use Cases

  • Header Analysis: Scans for missing, misconfigured, or deprecated security headers.
  • Vulnerability Detection: Identifies risks like XSS, clickjacking, and MITM attacks.
  • Implementation Guidance: Provides specific code examples for fixing headers in various server environments.
  • Use Case: You can use this Skill to audit your website's security headers, receive a detailed report on its security posture, and get actionable steps to implement headers like Content Security Policy (CSP) and HTTP Strict Transport Security (HSTS).

Quick Start

Use the security-headers skill to analyze the security headers for https://example.com.

Frequently Asked Questions about security-headers

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I check my web app for missing HTTP security headers?▼

Security headers protect web applications by preventing attacks like XSS, clickjacking, and MITM, where headers like CSP restrict resource loading and HSTS forces HTTPS connections to prevent protocol downgrade attempts.

How do I fix a misconfigured Content Security Policy or CORS header?▼

Fix a misconfigured Content Security Policy or CORS header by analyzing the specific misconfiguration against best practices, then applying the provided implementation guidance and code examples to correct your server environment's header directives.

What HTTP security headers are needed to prevent clickjacking and XSS?▼

Security headers prevent vulnerabilities like XSS, clickjacking, and MITM attacks by enforcing policies like CSP for resource loading and HSTS for strict HTTPS connections, stopping protocol downgrades.

Can I get implementation guidance for deploying HSTS across different server environments?▼

Yes, you receive specific implementation guidance and code examples for fixing and deploying headers like HSTS and CSP across various server environments to ensure compliance with web security best practices.

Does a standard web security header scan detect CORS misconfigurations?▼

Yes, a standard web security header scan detects CORS misconfigurations alongside missing or deprecated headers, providing a detailed report on your security posture and actionable steps to correct the vulnerabilities.

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