Where is the RightField Inspector application?

[Malcolm Cook]

Hi,

in the RightField User Guide I read 

If you want to view this hidden information, you can use the RightField Inspector application here: http://inspect.rightfield.org.uk/
In future versions of RightField, this hidden information will also be accessible from the native, marked-up spreadsheets.

However the link leads to

This site can’t be reached

inspect.rightfield.org.uk’s server DNS address could not be found.

Is this application still available?

Is there still a plan for hidden information (to) be accessible from the native, marked-up spreadsheets?

Thanks!