shell:$ nslookup -timeout=2 -retry=1 'pengajar.ruangguru.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
pengajar.ruangguru.com	canonical name = pengajar.ruangguru.com.eo.dnse5.com.
Name:	pengajar.ruangguru.com.eo.dnse5.com
Address: 43.175.144.123
Name:	pengajar.ruangguru.com.eo.dnse5.com
Address: 240d:c010:12b:2::2d