DNS issues are a very common problem.We recommend resolving any DNS issues that may occur since they could cause your website to become inaccessible. Even if you're not experiencing issues, it's important that you monitor your configuration in order to try and avoid future issues with Mail Servers, for example.

To check the health of your DNS, you can refer to one of two sites.

http://dnscheck.pingdom.com/
http://intodns.com/

If either of these tools detect an issue with your DNS configuration, you have several options including:

1) Speak to your domain registrar for assistance with debugging the issue(s) in question.
2) Speak to one of our technical support advisors.
3) Attempt to debug the issue yourself (possibly with the use of searching around the web for articles which may help).