HTTP Header Check Tool allows you to test the X-Pull configuration of your server and check whether hotlink protection is running smoothly. It also lists the details of the HTTP response header with *curl in the background such as:
HTTP status codes
This tool also finds outs whether you have HTTP security headers in these places:
curl is a tool to transfer data from or to a server, using one of the supported protocols (DICT, FILE, FTP, FTPS, GOPHER, HTTP, HTTPS, IMAP, IMAPS, LDAP, LDAPS, POP3, POP3S, RTMP, RTSP, SCP, SFTP, SMB, SMBS, SMTP, SMTPS, TELNET and TFTP). The command is designed to work without user interaction.