[dns-operations] List (with comments) of online DNS checking tools

[Stephane Bortzmeyer]

On Tue, Sep 21, 2010 at 11:08:23AM +0200,
 Marco Davids (SIDN) <marco.davids at sidn.nl> wrote 
 a message of 19 lines which said:

> I still use http://www.dnscheck.se/ every now and then...

Highly technical as well, and also IPv6-challenged (an error "No A
record found" for IPv6 name servers, which is certainly not
recommended by IETF :-)