Python - Script - Which Webserver Does That Site Run?

You can use this little Python function to see what type of web server a site is running.  All it does is send an HTTP request to the host and reads the 'server' header in the response.

import httplib

def get_server_type(host):
    conn = httplib.HTTPConnection(host)
    conn.request('GET', '/')
    resp = conn.getresponse()
    return resp.getheader('server')


print get_server_type('www.pylot.org')
print get_server_type('www.techcrunch.com')

Output:

lighttpd/1.4.19
Apache/2.0.52

Note: This doesn't work for all sites