[CentOS] looking for good web based DNS script to check nameservers

[Rudi Ahlers]

Hi all,

I'm looking for a good web based script / website that can do a full
ananlysis on DNS & namservers.

Can someone please recommend something good to use?

And if possible, if it could show any errors, or even make suggestions
(like "TTL is too high", or " you don't have an MX, please ad one",
etc)
-- 

Kind Regards
Rudi Ahlers