SecurityFree Tool

Security Headers Scanner

Provided bySecurity Headerssecurityheaders.com

Scans a website's HTTP response headers and assigns a letter-grade security score with remediation guidance for missi...

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About this tool

What Security Headers Scanner does

Security Headers Scanner evaluates a website's HTTP response headers and assigns a letter-grade security score. It identifies missing or weak headers that could expose the site to attacks, then provides remediation guidance to help strengthen the configuration. The tool is designed for developers, site administrators, and cybersecurity professionals who need to assess and improve their site's security posture through header analysis.

Step by step

How to use the Security Headers Security Headers Scanner

  1. 1

    Enter the website URL into the scanner's input field

  2. 2

    Initiate the header analysis to generate the security score

  3. 3

    Review the letter-grade result and the listed missing or weak headers

  4. 4

    Follow the provided remediation guidance to address identified vulnerabilities

Is it right for you

Best for

Developers and site administrators who need a quick, graded assessment of their website's HTTP header security and actionable steps to fix gaps.

Limitations

  • Results are based on automated header analysis and may not catch all configuration nuances
  • Score reflects current header state and requires periodic re-scan after changes
  • No unit conversion or multi-domain batch scanning capabilities are advertised
Questions

Security Headers Scanner FAQ

How often should I re-scan my website after making header changes?
It is recommended to re-scan whenever HTTP response headers are modified to confirm the new configuration earns the expected security grade.
Can this tool fix header issues for me?
No, the scanner only identifies missing or weak headers and provides guidance; you must implement the suggested changes on your web server.
What types of headers does the scanner check for?
The tool evaluates common security-related headers such as Content-Security-Policy, X-Frame-Options, and Strict-Transport-Security, among others.
Is the security score a percentage or a letter grade?
The scanner assigns a letter grade based on the presence and strength of the analyzed headers.
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