This tool is typically used to test the X-Pull configuration of your server, check if hotlink protection is working, or provide you with the full details of the HTTP response header with curl in the background, such as:
HTTP status codes
And check if you have HTTP security headers in place, such as:
What is curl?
curl is an open source command line tool used for transferring data with URL syntax, in this tool's case, HTTP and HTTPS requests.
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