shell:$ nslookup -timeout=2 -retry=1 'express-dark.razorpay.com'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
express-dark.razorpay.com	canonical name = cde-green-ext-v2.razorpay.com.
Name:	cde-green-ext-v2.razorpay.com
Address: 3.109.41.52
Name:	cde-green-ext-v2.razorpay.com
Address: 13.205.134.179