HSTS Checker Tool
Test HTTP Strict Transport Security configuration and analyze web security
Security Analysis
Fast Check
HSTS Validation
What is HSTS?
HTTP Strict Transport Security (HSTS) forces browsers to use HTTPS, protecting against protocol downgrade attacks and cookie hijacking.
HSTS Security Check
Enter a domain name to check its HSTS (HTTP Strict Transport Security) configuration, analyze security headers, and get security recommendations.
Tool Features
Comprehensive HSTS and security header analysis with recommendations
HSTS Detection
Check if HTTP Strict Transport Security is properly configured
Security Analysis
Comprehensive security header analysis and validation
Configuration Validation
Validate HSTS parameters and detect configuration issues
Security Score
Get an overall security score with improvement recommendations