HTTP Header Viewer

Fetch and inspect live HTTP response headers, CORS policies, security flags, and server technology tokens.

Security Header Audit

Inspect Strict-Transport-Security (HSTS), X-Frame-Options, and Content-Security-Policy.

Server Technology Tokens

Identify web server software (Nginx, Apache, Cloudflare) and caching directives.

1-Click Copy

Copy raw HTTP headers text directly to clipboard.

Sending HTTP HEAD request to URL...

Live HTTP Response Headers

What is an HTTP Header Viewer?

An HTTP Header Viewer performs an HTTP HEAD query to inspect response header metadata returned by web servers, assisting in CORS and security configuration.