Root zone
These servers manage the DNS root zone
all servers delegate to
com.
These servers manage the com zone
all servers delegate to
on-core.com.
These servers manage the on-core.com zone
Inconsistent responses
We queried these DNS servers, but not all of them returned the same response. Select a group to see their response.
This server claims authority over the on-core.com zone, which contains mail.on-core.com
This server timed out.
This server failed to respond.