ns2.opencad.com has one IP number , via cname to ns2.everydns.net , which also has a corresponding reverse pointer. i521.info, ns2.xjx.hu, xns7.2x4.ru, ns.ljsf.org, ns.jwdc.org and at least 40 other hosts point to the same IP. authorpublished.com use this as a nameserver. opencad.com is a domain controlled by four nameservers at everydns.net. All of them are on different IP networks. Incoming mail for opencad.com is handled by seven mailservers having a total of 13 IP numbers. Two mailservers have the same IP number. Some of them are on the same IP network. opencad.com has one IP number. ns2.opencad.com is hosted on a server in United Kingdom.