6th Day of Christmas: recon-ng
recong-ng is a powerful full-featured web reconnaissance framework. The usage is very similar to the Metasploit Framework (MSF).
There are a lot of modules to explore. Some of the more interesting one are:
recon-ng In Action
There you go. Contact details of the domain name holder.
Have fun "recon-ing".
Shared by Tan Jun Hao.