How to get the page size (of a url) using wget

Hi ,
I am trying to get page size of a url(e.g.,www.example.com) using wget command.Any thoughts what are the parameters i need to send with wget to get the size alone?

Regards,
Raj

wget --spider --server-response will print any headers the server returns without downloading the page proper. Unfortunately, many pages, particularly dynamically generated ones, won't report their size, just report "Length: unspecified [text/html]".