This node can be used to issue HTTP HEAD requests. The HEAD method is identical to the HTTP GET Method, except that the server will not return a message-body as part of the HTTP response. Rather, it will only return the HTTP headers.
The node allows you to either send a request to a fixed URL (which is specified in the dialog) or to a list of URLs provided by an optional input table. Every URL will result in one request which in turn will result in one row in the output table. You can define custom request headers in the dialog.
By default the output table will contain the HTTP status code and the content type. In addition to that it contains one column for each response header defined in the dialog.
The node supports several authentication methods, e.g. BASIC and DIGEST. Other authentication methods may be provided by additional extensions.
The node supports the Credential port as input (see dynamic input ports). If the port is added, it must supply a Credential that can be embedded into the HTTP Authorization header, and all request done by the node will use the Credential from the port, regardless of other node settings. The OAuth2 Authenticator nodes provide such a Credential for example.