shell:$ nslookup -timeout=2 -retry=1 'cdn.optimizely.com'
Server: 1.1.1.1
Address: 1.1.1.1#53
Non-authoritative answer:
Name: cdn.optimizely.com
Address: 104.18.66.57
Name: cdn.optimizely.com
Address: 104.18.65.57
Name: cdn.optimizely.com
Address: 2606:4700::6812:4139
Name: cdn.optimizely.com
Address: 2606:4700::6812:4239
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