What HTTP response headers does this tool analyze?

The tool analyzes all HTTP response headers including security headers (HSTS, CSP, X-Frame-Options), caching headers, content headers, server information, and custom headers returned by the target URL.

How does this tool help with website security?

It audits critical security headers that protect against common attacks like XSS, clickjacking, and SSL downgrade attacks, highlighting missing or misconfigured security implementations.

Can I analyze headers for password-protected or private URLs?

The tool can only analyze publicly accessible URLs. Private, password-protected, or internal network URLs cannot be accessed for security reasons.

What is the difference between request and response headers?

Request headers are sent by your browser to the server, while response headers are sent back by the server. This tool analyzes response headers which control how browsers handle the content.

Does the tool follow redirects when analyzing headers?

Yes, the tool follows redirects and shows the final destination URL along with all response headers, helping you understand the complete request chain and final server response.

HTTP Header Analyzer - Free Online SEO Tool

The HTTP Header Analyzer is a comprehensive web analysis tool that examines all HTTP response headers returned by any URL. This essential SEO and security audit tool helps developers, webmasters, and security professionals inspect server configurations, security implementations, and caching policies to optimize website performance and security posture.

Key Analysis Features

This tool performs deep HTTP header inspection by fetching complete response headers and organizing them into clear categories. It analyzes security headers like HSTS, Content Security Policy (CSP), X-Frame-Options, and X-Content-Type-Options while also examining caching headers, content type declarations, and server information. The tool tracks redirects to show final destination URLs and displays HTTP status codes alongside header data.

Security Header Auditing

The analyzer includes a dedicated security headers audit panel that evaluates your website's protection against common web vulnerabilities. It checks for HSTS implementation to prevent SSL downgrade attacks, CSP headers to mitigate XSS risks, clickjacking protection via X-Frame-Options, and MIME-sniffing prevention through proper content type headers. Missing security headers are flagged with recommendations for implementation.

Practical Applications

Audit website security header implementations
Troubleshoot caching and performance issues
Verify server configurations and redirects
Analyze competitor security practices
Debug content delivery and compression settings

Regular HTTP header analysis ensures optimal website security, performance, and search engine compatibility. This tool provides the comprehensive header inspection needed for professional web development, SEO optimization, and security auditing workflows.

HTTP Header Analyzer - Free Online SEO Tool