"Grab a copy of Mozilla and the LiveHTTPHeaders extension. Watch to see what the server you access announces itself as."

Yuck, why all the hassle of installing and firing up Mozilla (+LiveHTTPHeaders) when LWP provides you with lwp-request (and HEAD)? Or if that's not installed on your box, what about telnet?

$ lwp-request -m HEAD <url>

$ HEAD <url>

$ telnet <server> 80
Trying <www.xxx.yyy.zzz>...
Connected to <server>
Escape character is '^]'.
HEAD / HTTP/1.0
[download]

"Of course, there are many people who believe that Windows must be the best thing out there, otherwise why else would so many people use it?"

I'm fairly sure a lot of people know smoking is bad for their health, yet they still smoke a pack a day.