ns1.webvis.net has one IP number , which also has a corresponding reverse pointer. macchocolate.com point to the same IP. bdp.lk, sms.sg, spc.lk, dsi.lk, dv9.com and at least 100 other hosts use this as a nameserver. webvis.net is a domain controlled by three nameservers at webvis.net themselves. All of them are on different IP networks. Incoming mail for webvis.net is handled by two mailservers also at webvis.net. They are on the same IP network. webvis.net has one IP number. ns1.webvis.net is hosted on a server in Singapore.