dig @8.8.8.8 www.google.co.jp とDNSを指定するのもあり
$ dig www.google.co.jp ; <<>> DiG 9.5.1-P1-RedHat-9.5.1-1.P1.fc10 <<>> www.google.co.jp ;; global options: printcmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 53670 ;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONAL: 0 ;; QUESTION SECTION: ;www.google.co.jp. IN A ;; ANSWER SECTION: www.google.co.jp. 300 IN A 74.125.235.120 www.google.co.jp. 300 IN A 74.125.235.127 www.google.co.jp. 300 IN A 74.125.235.119 ;; Query time: 40 msec ;; SERVER: 8.8.8.8#53(8.8.8.8) ;; WHEN: Fri Dec 20 12:51:57 2013 ;; MSG SIZE rcvd: 82
もちろん、whoisでもありません