Security Headers Analyzer

Analyze website security headers

Security Analysis

Security Headers Analyzer - Free Online Website Security Analysis Tool

Security Headers Analyzer is a free tool to check and analyze security headers of online websites. Evaluate the security level with a score from 0-100, checking the 7 most important security headers: Content-Security-Policy, Strict-Transport-Security, X-Frame-Options, X-Content-Type-Options, X-XSS-Protection, Referrer-Policy and Permissions-Policy. The tool helps you detect common security vulnerabilities such as XSS, clickjacking, MIME sniffing and suggests detailed fixes.

Outstanding features

Content-Security-Policy (CSP) checks prevent XSS attacks
Analyze Strict-Transport-Security (HSTS) forcing HTTPS
Check X-Frame-Options against clickjacking
Evaluate X-Content-Type-Options to prevent MIME sniffing
See the browser's X-XSS-Protection filter
Check Referrer-Policy to protect privacy
Analyze Permissions-Policy controlling browser features
Overall security score from 0-100
Explain in detail each header and its effects
Suggest optimal header value for each case

Why Are Security Headers Important?

Security headers are the first line of defense protecting websites and users from common attacks. Content-Security-Policy prevents XSS by controlling which resources are allowed to load. HSTS forces browsers to always use HTTPS, avoiding downgrade attacks. X-Frame-Options prevents websites from being embedded in iframes to perform clickjacking. Without security headers, your website is vulnerable to attacks and may be given a low security rating by Google. Security scanning tools such as Mozilla Observatory and SecurityHeaders.com all check these headers.

Benefits when used

  • •Protect website from XSS, clickjacking, MIME sniffing
  • •Get high scores on security scanners
  • •Increase credibility with users and partners
  • •Comply with security standards such as PCI DSS, HIPAA
  • •Improve SEO with a safer website
  • •Protect user data from theft
  • •Prevent man-in-the-middle attacks
  • •Control shared referrer information

Security Headers Analyzer User Guide

  1. 1Enter the full URL of the website to be tested (including https://)
  2. 2Press the
  3. 3button or Enter to start
  4. 4Wait a few seconds for the tool to fetch and parse the
  5. 5headers See overall security score (0-100) with color visualization
  6. 6Check each header: green = present, red = missing
  7. 7Read the explanation and suggested values ​​for missing headers

Cooperate immediately with Mavis Digital

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