By default this service will be set up on localhost and will not
be permitted on access websites set up on private IP addresses. To
change these run 'dpkg-reconfigure w3c-linkchecker'.

The configuration file is /etc/w3c/checklink.conf. Not all of the 
options in that file are currently configurable via dpkg-reconfigure.
Those would need to be changed manually.

The package currently only provides support for Apache. If you want to do the
work to integrate w3c-linkchecker with other web servers we will be happy
to incorporate it.

The apache server will need to be bounced to pick up the installation or any 
configuration changes.