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IP & Network Tools

HTTP Security Headers Checker

Inspect common browser security headers returned by a public website.

Free foreverRuns in your browserNo sign-up

IP & Network Tools

HTTP Security Headers Checker

Inspect the response headers returned by a public website and review six common browser security controls.

This live lookup sends only the IP address or hostname you enter to the named public lookup service. Do not submit private hostnames or confidential infrastructure details.

About the HTTP Security Headers Checker

HTTP Security Headers Checker is a focused network utility for administrators, developers, support teams and people troubleshooting an internet connection. Inspect common browser security headers returned by a public website.

Live results use a public lookup service. Only the address or hostname submitted for lookup is sent to that service.

Results describe public network information and should not be treated as proof of a person's identity or exact physical location.

Key features

  • Six security header checks
  • Simple A-to-F summary
  • Complete response-header list

How to use

  1. 1Enter a public website URL.
  2. 2Select Inspect headers.
  3. 3Review present, missing and complete response headers.

Examples

HTTP Security Headers Checker example
Input: https://example.com
Output: Header score and complete response headers

The score is a quick checklist, not a full security audit.

Frequently asked questions

Is this tool free?
Yes. It requires no account, payment or software installation.
Are IP location results exact?
No. IP geolocation is approximate and usually identifies a network region, not a home, person or precise device location.
Does this tool expose private network data?
Only the public IP address or hostname you deliberately submit is sent to the public lookup provider shown in the tool.
Can I use it on mobile?
Yes. Inputs, tables and results adapt to phones, tablets and desktop browsers.

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