CORS Tester Tool
Comprehensive CORS header analysis and cross-origin request validation
Header Analysis
Origin Validation
Security Check
What is CORS?
Cross-Origin Resource Sharing (CORS) is a security mechanism that allows web pages to make requests to a different domain than the one serving the web page
CORS Header Test
Enter the target URL and origin to test CORS headers. Verify if cross-origin requests are properly configured.
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