View and analyze HTTP headers of any website
The HTTP Header Checker by ToolsGenerate is a free online tool that retrieves and analyzes HTTP headers from any website. Whether you're debugging web applications, performing security audits, or optimizing performance, our tool provides comprehensive header information.
Inspect request and response headers, security configurations, caching policies, and server information for better web development and security analysis.
HTTP headers are additional information sent between a web browser (client) and a web server during HTTP requests and responses. They carry metadata about the request or response.
Common header types include:
Checking HTTP headers is straightforward:
The tool displays:
Content-Security-Policy (CSP):
Prevents XSS attacks by specifying which resources can be loaded. Essential for modern web security.
X-Frame-Options:
Protects against clickjacking by controlling whether page can be embedded in iframes.
Strict-Transport-Security (HSTS):
Forces browsers to use HTTPS only, preventing man-in-the-middle attacks.
Security Auditing:
Identify missing security headers and vulnerabilities before attackers exploit them.
Performance Optimization:
Analyze caching headers to improve page load times and reduce server load.
Debugging:
Troubleshoot CORS issues, cookie problems, and content delivery issues efficiently.
✔ Regularly audit security headers
✔ Implement all recommended security headers
✔ Monitor header changes after deployments
✔ Test headers across different pages
✔ Keep up with security header updates
✔ Use HTTPS for all resources
Proper header configuration enhances both security and performance of your website.
Find answers to common questions about our HTTP Header Checker
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