I'm unable to add a signing key as directed here,

https://wiki.trinitydesktop.org/DebianInstall


I get records not found for a whois of 

keyserver.quickbuild.pearsoncomputing.net
and
quickbuild.pearsoncomputing.net

This keeps me from being able to add keys and install packages from 
trinitydesktop.org  

pearsoncomputing.net 
and 
wiki.trinity.desktop

are working.  

Is this just me?