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Security Header Check

Review HTTP headers that support browser-side security.

Risk indicator

Baseline indicators for clickjacking, content injection, and protocol weaknesses.

This tool provides a passive pre-assessment; security testing must not be performed on unauthorized systems.

Passive pre-check

Start the check

Result

Baseline technical indicators

Your score, risk level, gaps, and actionable recommendations will appear here.

Check scope

What does this check?

  • ✓ HSTS and CSP
  • ✓ Frame and MIME protection
  • ✓ Referrer and Permissions Policy

Interpretation

How should results be read?

Results rely only on accessible public HTTP responses and baseline technical indicators. Manual review is recommended.

Common mistakes

What is often missed?

  • ○ Deploying CSP without testing
  • ○ Enforcing HSTS on HTTP-only subdomains
  • ○ Assuming headers are always set

Frequently Asked Questions

Limits of passive checks

Is this a definitive security report?

No. It is a passive pre-assessment based only on baseline indicators visible in public responses.

Can I check a website owned by someone else?

Tools should only be used for systems you own or are explicitly authorized to review.

Does a low-risk result guarantee security?

No. Access and technical conditions affect results; manual review is recommended for detailed assessment.

CRY expert support

Let’s review this result together.

We can prioritize the findings and build an actionable improvement plan for your website.

Request a Security Pre-Check →

SEO note

Connect Security Header Check output to search visibility.

A tool result is not the final report by itself; it should be read together with technical signals, page intent, and competition level.

01

Read technical SEO signals in one place and prioritize the next action.

02

See more clearly how search engines crawl and interpret the page.

03

Connect the output to content, performance, and security improvements.