shell:$ nslookup -timeout=2 -retry=1 'simage2.pubmatic.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
simage2.pubmatic.com	canonical name = simage2v2.pubmnet.com.
simage2v2.pubmnet.com	canonical name = pug-sfo-bc.pubmnet.com.
Name:	pug-sfo-bc.pubmnet.com
Address: 104.36.113.107