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HTTP Header Checker
Analyze HTTP headers for any website and check security configuration
code HTTP Header Checker
help_outline Understanding HTTP Headers
What are HTTP Headers?
HTTP headers are key-value pairs sent between web clients and servers to provide additional information about the request or response. They control caching, security, content type, and many other aspects of web communication.
Header Categories
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info
General: Content-Type, Content-Length, Date
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security
Security: CSP, HSTS, X-Frame-Options
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speed
Performance: Cache-Control, ETag, Vary
Important Security Headers
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shield
Strict-Transport-Security: Enforces HTTPS connections
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shield
X-Frame-Options: Prevents clickjacking attacks
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shield
Content-Security-Policy: Controls resource loading
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shield
X-Content-Type-Options: Prevents MIME-type sniffing
tips_and_updates
Best Practice:
Implement security headers to protect against XSS, clickjacking, and other attacks. Use tools like securityheaders.com to test your configuration.
speed Performance Optimization Headers
Cache-Control:
Directs caching behavior in browsers
ETag:
Enables conditional requests
Vary:
Specifies response variations
Content-Encoding:
Indicates compression (gzip, deflate)