shell:$ nslookup -timeout=2 -retry=1 'fls.doubleclick.net'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	fls.doubleclick.net
Address: 142.250.139.148
Name:	fls.doubleclick.net
Address: 142.250.139.149