shell:$ nslookup -timeout=2 -retry=1 'image2.pubmatic.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
image2.pubmatic.com	canonical name = image2v2.pubmnet.com.
image2v2.pubmnet.com	canonical name = pug-vac.pubmnet.com.
Name:	pug-vac.pubmnet.com
Address: 8.28.7.83