I guess their server is hosting more than one domains, so in order to make it find the right domain: www.meridiana.it
you need to put www.meridiana.it in host as:
telnet www.meridiana.it 80
GET / HTTP/1.1
Host: www.meridiana.it
Connection: close
Accept-Encoding: gzip
Accept: image/gif, image/x-xbitmap, image/jpeg, image/pjpeg, application/vnd.ms-excel, application/msword, application/x-shockwave-flash, /
Accept-Language: en-us
User-Agent: Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; .NET CLR 1.1.4322)
I tried and it worked this way