CORS Tester

Use this little website to test if a URL is setup correctly to work with CORS.




If your CORS setup is not using a wildcard then this should be a domain that matches your AllowedOrigins


Shareable link:

Results

This URL will work correctly with CORS.

Headers

These are the response headers received when making the request.

accept-ranges: bytes
access-control-allow-methods: GET
access-control-allow-origin: *
access-control-max-age: 3600
cf-cache-status: DYNAMIC
cf-ray: a54f4c2478dacf4e-CMH
connection: close
content-length: 69
content-type: application/yaml
date: Tue, 03 Nov 2026 23:53:16 GMT
etag: "84dca7ddaadf4223b47985f03566d402"
last-modified: Tue, 03 Nov 2026 23:52:54 GMT
server: cloudflare
vary: Origin, Access-Control-Request-Headers, Access-Control-Request-Method
x-amz-id-2: AvKlYD0POyUhCSOnkLeQ5qGC8AyYJmva4dSEwf9RdqmwMiHx2CA6pcuNhnspmd5N7FtKq8ph5wGeVwTs2GwRL/RUY7uZd38s
x-amz-replication-status: COMPLETED
x-amz-request-id: WRGSBG0TTJ9X1A5Q
x-amz-server-side-encryption: AES256
x-amz-storage-class: INTELLIGENT_TIERING
x-amz-version-id: Y6ySmBppLlItMzBzFlj44OECa.JXjrDt

CORS tester was built by @mscccc. The code is available on GitHub. Sponsored by HTML/CSS to Image.