shell:$ nslookup -timeout=2 -retry=1 'bookingbug-dev.auth.eu-west-1.amazoncognito.com'
Server:		127.0.0.53
Address:	127.0.0.53#53

Non-authoritative answer:
Name:	bookingbug-dev.auth.eu-west-1.amazoncognito.com
Address: 52.214.15.127
Name:	bookingbug-dev.auth.eu-west-1.amazoncognito.com
Address: 99.80.254.64
Name:	bookingbug-dev.auth.eu-west-1.amazoncognito.com
Address: 52.51.115.228
Name:	bookingbug-dev.auth.eu-west-1.amazoncognito.com
Address: 2a05:d018:478:8a00:665d:7441:31d7:12f2
Name:	bookingbug-dev.auth.eu-west-1.amazoncognito.com
Address: 2a05:d018:478:8a02:51e4:ebfb:cf3c:4e78
Name:	bookingbug-dev.auth.eu-west-1.amazoncognito.com
Address: 2a05:d018:478:8a01:43e3:68fd:9997:3821