shell:$ nslookup -timeout=2 -retry=1 'sp-web.search.auone.jp'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
sp-web.search.auone.jp	canonical name = sp-web.search.ss-as-internal.net.
Name:	sp-web.search.ss-as-internal.net
Address: 54.249.169.46
Name:	sp-web.search.ss-as-internal.net
Address: 18.176.105.140