Does cURL NOBODY actually fetch the body?

I'm not sure if this function in CURL just strips the response body out but still load it fully. Is that true? I don'开发者_如何学Ct want to waste bandwidth, I just want the headers.

CURLOPT_NOBODY will send a HEAD request to web server. The server should respond with just the HTTP headers and no body content.

http://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html

The HEAD method is identical to GET except that the server MUST NOT return a message-body in the response.

It will only load the headers, it won't load the body of the requested document.

As you can see in official doc, It will not download the body if you enable it

https://curl.haxx.se/libcurl/c/CURLOPT_NOBODY.html

DESCRIPTION A long parameter set to 1 tells libcurl to not include the body-part in the output when doing what would otherwise be a download. For HTTP(S), this makes libcurl do a HEAD request. For most other protocols it means just not asking to transfer the body data.

Enabling this option means asking for a download but without a body.