HTTP Header Checker
Inspect the exact HTTP headers returned by a web server.
HTTP Header Checker
Analyze HTTP response headers to verify caching policies, security settings, and server information.
Enter a URL above to inspect its HTTP response headers and status codes.
What are HTTP Headers?
HTTP headers allow the client and the server to pass additional information with an HTTP request or response. An HTTP header consists of its case-insensitive name followed by a colon (:), then by its value.
Important Headers to Check
- Cache-Control: Specifies directives for caching mechanisms in both requests and responses.
- Content-Type: Indicates the media type of the resource.
- Strict-Transport-Security: Enforces secure (HTTP over SSL/TLS) connections to the server.
- Content-Security-Policy: Helps prevent XSS and data injection attacks.
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