Enter a URL to check its CORS headers.
Check CORS headers for any website.
CORS Checker tests Cross-Origin Resource Sharing headers for any URL. See also: http-header-checker or security-headers-checker.
To use CORS Checker, first enter the full URL including https://. Then, click Check CORS to fetch and inspect headers. After that, review which CORS headers are present or missing. The result appears instantly in your browser.
CORS Checker tests Cross-Origin Resource Sharing headers for any URL. It runs entirely in your browser, with no sign-up and no file uploads.
First, enter the full URL including https://. Then, click Check CORS to fetch and inspect headers. Review which CORS headers are present or missing.
Yes - CORS Checker is completely free and requires no account. Everything runs locally in your browser, so your lookups and generated credentials never leave your device.