Did you know that you can use Domain Name Filter Pro to analyze domain zone files?
If you have access to the Centralized Zone Data Service of ICANN you can download the zone files to your local hard disk. Unzip the downloaded file and then use Domain Name Filter Pro to import it using the “Import Entries >> Local File Import” option.
After importing, remember to remove duplicates from the list (right click within the list and select “Remove Duplicates” from the menu).
Once you have the domain names in the software use any of the many filtering options to analyze the domain names or use the domain name splitter to find component keywords.