Client-Sideโข In-Memory
Related & Companion Utilities
Complementary developer utilities frequently used alongside HTTP Header Checker & Security Inspector.
Client-SideRuns Locally
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Frequently Asked Questions
Common queries, shortcut keys, and details about using this utility.
4FAQs
It sends an HTTP request to any public URL or hostname and analyzes all server response headers, HTTP protocol versions, response latency, and critical security headers like HSTS, CSP, and X-Frame-Options with an A+ to F security score.
Helpful Answer
Security headers instruct the web browser how to safely handle your web assets. Strict-Transport-Security (HSTS) enforces encrypted HTTPS connections, Content-Security-Policy (CSP) mitigates Cross-Site Scripting (XSS), and X-Frame-Options thwarts Clickjacking.
Helpful Answer
Yes. The tool generates instant copy-paste hardening snippets for Nginx, Apache HTTP Server, and Caddy to achieve an A+ security rating.
Helpful Answer
Yes. Our inspection engine blocks localhost, loopback addresses, metadata endpoints, and RFC 1918 private IPv4/IPv6 networks to protect your infrastructure.
Helpful Answer
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Chained Workflows (Piping)
Empty outputPipe this tool's output directly into another utility without manual copy-pasting.
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100% Client-Side In-Memory Execution โข Zero Server Retention
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