I've always wanted to write a DNS Report type tool, and recently have had a number of requests for this type of app - So I have started working on this and you can check out the alpha version by clicking the link below

Currently is has a useful DNS Reporting function that checks various aspects of a domains DNS, MX/Mail and Web settings to make sure the name servers are optimally configured

There is also an IP Whois tool which simply provide some information and mapping details on the IP provided.

And a traceroute tool which shows you the path from our server to the a destination of your choice, this is also graphically represented on a global map

And the last tool currently available is an SMTP AUTH tool which verifies SMTP Authentication, which is useful for third party/remote testing.

Any feedback or feature requests would be appreciated!