CORS Tester Tool
Comprehensive CORS header analysis and cross-origin request validation
Run a CORS Test
Enter the target URL and your origin to test if cross-origin requests are allowed
Tool Features
Comprehensive CORS header analysis with detailed recommendations
CORS Header Analysis
Comprehensive CORS header validation and origin access verification
Multiple HTTP Methods
Test CORS with GET, POST, PUT, DELETE and other HTTP methods
Origin Validation
Verify if your origin is properly allowed by the target server
Security Assessment
Check CORS configuration for security best practices