shell:$ nslookup -timeout=2 -retry=1 'cdn.ably.io'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
cdn.ably.io	canonical name = cdn.ably.com.
cdn.ably.com	canonical name = d17if134pyeemt.cloudfront.net.
Name:	d17if134pyeemt.cloudfront.net
Address: 3.162.174.104
Name:	d17if134pyeemt.cloudfront.net
Address: 3.162.174.69
Name:	d17if134pyeemt.cloudfront.net
Address: 3.162.174.40
Name:	d17if134pyeemt.cloudfront.net
Address: 3.162.174.16
Name:	d17if134pyeemt.cloudfront.net
Address: 2600:9000:2617:dc00:5:57e9:e540:93a1
Name:	d17if134pyeemt.cloudfront.net
Address: 2600:9000:2617:1e00:5:57e9:e540:93a1
Name:	d17if134pyeemt.cloudfront.net
Address: 2600:9000:2617:5000:5:57e9:e540:93a1
Name:	d17if134pyeemt.cloudfront.net
Address: 2600:9000:2617:d000:5:57e9:e540:93a1
Name:	d17if134pyeemt.cloudfront.net
Address: 2600:9000:2617:4a00:5:57e9:e540:93a1
Name:	d17if134pyeemt.cloudfront.net
Address: 2600:9000:2617:a400:5:57e9:e540:93a1
Name:	d17if134pyeemt.cloudfront.net
Address: 2600:9000:2617:4200:5:57e9:e540:93a1
Name:	d17if134pyeemt.cloudfront.net
Address: 2600:9000:2617:1600:5:57e9:e540:93a1