shell:$ nslookup -timeout=2 -retry=1 'assets.o2.co.uk'
Server:		75.98.161.224
Address:	75.98.161.224#53

Non-authoritative answer:
assets.o2.co.uk	canonical name = d22rar33u9x547.cloudfront.net.
Name:	d22rar33u9x547.cloudfront.net
Address: 18.154.110.76
Name:	d22rar33u9x547.cloudfront.net
Address: 18.154.110.85
Name:	d22rar33u9x547.cloudfront.net
Address: 18.154.110.112
Name:	d22rar33u9x547.cloudfront.net
Address: 18.154.110.56
Name:	d22rar33u9x547.cloudfront.net
Address: 2600:9000:2506:6800:1a:5a1a:49c0:93a1
Name:	d22rar33u9x547.cloudfront.net
Address: 2600:9000:2506:2400:1a:5a1a:49c0:93a1
Name:	d22rar33u9x547.cloudfront.net
Address: 2600:9000:2506:200:1a:5a1a:49c0:93a1
Name:	d22rar33u9x547.cloudfront.net
Address: 2600:9000:2506:ec00:1a:5a1a:49c0:93a1
Name:	d22rar33u9x547.cloudfront.net
Address: 2600:9000:2506:f000:1a:5a1a:49c0:93a1
Name:	d22rar33u9x547.cloudfront.net
Address: 2600:9000:2506:ce00:1a:5a1a:49c0:93a1
Name:	d22rar33u9x547.cloudfront.net
Address: 2600:9000:2506:a400:1a:5a1a:49c0:93a1
Name:	d22rar33u9x547.cloudfront.net
Address: 2600:9000:2506:a800:1a:5a1a:49c0:93a1