shell:$ nslookup -timeout=2 -retry=1 'cdn.udemy.com.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
Name:	cdn.udemy.com.com
Address: 172.67.72.218
Name:	cdn.udemy.com.com
Address: 104.26.4.148
Name:	cdn.udemy.com.com
Address: 104.26.5.148
Name:	cdn.udemy.com.com
Address: 2606:4700:20::681a:494
Name:	cdn.udemy.com.com
Address: 2606:4700:20::ac43:48da
Name:	cdn.udemy.com.com
Address: 2606:4700:20::681a:594