HTTP Header Checker
Check HTTP headers of any URL. Analyze server response headers for security and performance.
Fetches server response headers via HackerTarget API (free tier, rate-limited).
About HTTP Header Checker
Check HTTP headers of any URL. Analyze server response headers for security and performance.
HTTP Header Checker inspects network details from your browser — enter a host, address or URL and get clear, readable results without touching the command line.
How to Use HTTP Header Checker
- Enter the host, IP address, URL or port you want to inspect.
- Choose any options the tool offers (protocol, count, depth).
- Run the check — results appear as the browser completes the request.
- Copy the report or note down the details you need.
Key Features
- No terminal or admin tools needed — everything happens in the page.
- Clear, readable results instead of raw command output.
- Checks run from your browser, reflecting what a real visitor experiences.
Frequently Asked Questions
Does HTTP Header Checker really check the network?
Yes — HTTP Header Checker uses browser-based requests and lookups to test reachability the way a real visitor would experience it.
Is HTTP Header Checker free to use?
Yes. HTTP Header Checker is completely free with unlimited use — no account, download or payment required.
Is my data uploaded to a server?
No. HTTP Header Checker runs entirely in your browser. Your inputs are never sent to our servers or stored anywhere.
Does HTTP Header Checker work on mobile?
Yes. The interface is fully responsive and works in any modern browser on Android, iPhone, tablets and desktops.