shell:$ nslookup -timeout=2 -retry=1 'www.ymobile.jp'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
www.ymobile.jp	canonical name = du0ohbhre3271.cloudfront.net.
Name:	du0ohbhre3271.cloudfront.net
Address: 3.170.185.10
Name:	du0ohbhre3271.cloudfront.net
Address: 3.170.185.35
Name:	du0ohbhre3271.cloudfront.net
Address: 3.170.185.127
Name:	du0ohbhre3271.cloudfront.net
Address: 3.170.185.126
Name:	du0ohbhre3271.cloudfront.net
Address: 2600:9000:2512:9200:d:8985:f740:93a1
Name:	du0ohbhre3271.cloudfront.net
Address: 2600:9000:2512:3e00:d:8985:f740:93a1
Name:	du0ohbhre3271.cloudfront.net
Address: 2600:9000:2512:f400:d:8985:f740:93a1
Name:	du0ohbhre3271.cloudfront.net
Address: 2600:9000:2512:bc00:d:8985:f740:93a1
Name:	du0ohbhre3271.cloudfront.net
Address: 2600:9000:2512:4800:d:8985:f740:93a1
Name:	du0ohbhre3271.cloudfront.net
Address: 2600:9000:2512:aa00:d:8985:f740:93a1
Name:	du0ohbhre3271.cloudfront.net
Address: 2600:9000:2512:8200:d:8985:f740:93a1
Name:	du0ohbhre3271.cloudfront.net
Address: 2600:9000:2512:2200:d:8985:f740:93a1