TIPPINST – DNS records and their associated SOA record structure as well as A , PTR and MX records are not the easiest things to troubleshoot. The web site dnsreport.com does a pretty good job at pin pointing any potential DNS record problems. The analysis of irishsilicon.com points out that I have no MX records and explains why this could be a problem. The SOA records are cross checked so as to ensure that serial numbers are in agreement across all name servers. Dnsreport also checks if all your name servers are in the same location, which is not recommended. I would recommend that you analyse your site using dnsreport.com especially if you are relying on a third party to manage your DNS records on your behalf.