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Curl - Check HTTP Headers

curl -Ls -o /dev/null -D - sharewiz.net

-L Follow redirects
-s Silent mode. Don't show progress meter or error messages.
-D Write the protocol headers to the specified file.

Returns:

HTTP/1.1 200 OK
Server: nginx
Date: Fri, 01 Jul 2016 23:24:21 GMT
Content-Type: text/html
Content-Length: 28277
Last-Modified: Thu, 30 Jun 2016 23:16:03 GMT
Connection: keep-alive
ETag: "5775a833-6e75"
Accept-Ranges: bytes