HTTP headers lookup

Our HTTP Headers Lookup tool provides detailed analysis of all HTTP response headers returned by any URL, helping developers and administrators understand and optimize their website's security, performance, and configuration settings.

Headers We Analyze:

• Security Headers:
  • Content-Security-Policy (CSP)
  • Strict-Transport-Security (HSTS)
  • X-Content-Type-Options
  • X-Frame-Options
  • X-XSS-Protection
• Caching Headers:
  • Cache-Control
  • ETag
  • Last-Modified
  • Expires
  • Pragma
• Server Information:
  • Server type and version
  • Content-Type
  • Content-Encoding
  • Connection settings
• CORS Headers:
  • Access-Control-Allow-Origin
  • Access-Control-Allow-Methods
  • Access-Control-Allow-Headers

Key Benefits:

• Verify security header implementation
• Optimize caching policies
• Debug CORS issues
• Check compression settings
• Analyze server configuration
• Monitor content delivery settings

Essential For:

• Web developers troubleshooting issues
• Security professionals conducting assessments
• System administrators configuring servers
• Performance optimization specialists
• DevOps engineers monitoring deployments

Simply enter any URL to receive a comprehensive analysis of its HTTP response headers. Our tool presents the information in an easy-to-read format, helping you identify potential security vulnerabilities, optimization opportunities, and configuration issues.

Pro Tip: Regular header checks are crucial for maintaining security and performance. Pay special attention to security headers and caching policies, as these directly impact your website's security posture and loading speed.