There's a shareware program at grc.com called IDserve that will querry servers and return their specs.
This is what you get when you querry WP with it
Initiating server query ...
Looking up IP address for domain:
www.wrongplanet.netThe IP address for the domain is: 67.15.58.29
Connecting to the server on standard HTTP port: 80
[Connected] Requesting the server's default page.
The server returned the following response headers:
HTTP/1.1 200 OK
Date: Thu, 11 May 2006 14:05:07 GMT
Server: Apache
X-Powered-By: PHP/4.4.1
Set-Cookie: lang=english; expires=Friday, 11-May-07 14:05:07 GMT
Content-Encoding: gzip
Vary: Accept-Encoding
Connection: close
Transfer-Encoding: chunked
Content-Type: text/html