shell:$ nslookup -timeout=2 -retry=1 'pages.coursera.org'
Server: 127.0.0.53
Address: 127.0.0.53#53
Non-authoritative answer:
pages.coursera.org canonical name = coursera.mktoweb.com.
coursera.mktoweb.com canonical name = customer-pages-ab23.mktocloud.com.
Name: customer-pages-ab23.mktocloud.com
Address: 104.18.16.34
Name: customer-pages-ab23.mktocloud.com
Address: 104.18.17.34
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