Security Tool

HSTS Checker

Check HTTP Strict Transport Security headers.

Enter a URL to check its HSTS headers.

Quick Guide

  1. Step 1: Enter the full URL including https://
  2. Step 2: Click Check HSTS to fetch and inspect headers
  3. Step 3: Review the max-age strength and directive flags
  4. Step 4: Follow recommendations to strengthen HSTS configuration

What is HSTS Checker?

HSTS Checker tests if a website has HTTP Strict Transport Security enabled. See also: security-headers-checker or cors-checker.

How It Works

Enter the required information, configure your preferences, and click the process button. The tool performs the security analysis or generation using client-side algorithms and displays the results instantly. No data is transmitted externally.

Use Cases

Frequently Asked Questions

Is the HSTS Checker safe to use?

Yes, all processing happens locally in your browser. No sensitive data is transmitted.

Can I use it for production security checks?

The tool is suitable for quick checks but should complement, not replace, dedicated security tools.

Is the tool free?

Yes, it is completely free with no restrictions on usage.

Related Tools

Security Headers Checker

Check all security headers

SSL Certificate Checker

Check SSL certificates

CORS Checker

Check CORS headers