save them to a database table.  

Depending on how busy your site is and how attentive you are this table could become a monster to maintain!   Therefore, By default this feature is disabled.

To enable it:  edit the block's controller.php and remove the comment marker on line 47

User Limits: 

In order to restrict users from abusing your services, I've added a database table to track the IP and counts the number of times folks use the Domain Generator. This table only tracks users if they are NOT logged in!  All history is reset each day.  The count can be changed on the blocks edit window.  If you would like to change how long your site remembers this history, you will need to modify line 51 of the block's controller.php

Uninstall note: 

If you ever need to uninstall the Domain Generator, you need to be aware your custom wordlist will be lost!  if you simply want to re-install the block and preserve your custom word list, you need to comment out line 44 of the package's controller.php