Blacklist protects you from registration from domains you wouldn’t like to trade with. Here the usage of * is permitted.

For example

• *.yourdomain.com - to forbid registration from any domains subdomains yourdomain.com
• *.*.com - to forbid registration of domains of the 3rd level.

Banned IPs - to forbid registration from the mentioned IP. Some cheaters are not tired of registering new domains from the same IP every day.

Banned URLs and Banned Words - take a look at Rotation Graber