shell:$ nslookup -timeout=2 -retry=1 'www.digicert.com' Server: 75.98.161.224 Address: 75.98.161.224#53 Non-authoritative answer: www.digicert.com canonical name = 3ivgup7.x.incapdns.net. Name: 3ivgup7.x.incapdns.net Address: 45.60.121.229