How to blacklist an IP Address to deny it access to your website?

You can lock the directory with a password by using the cPanel “Password Protected Directories” option.

1. Log into your cPanel account.
2. In the “Security” section, click on the “IP Blocker” Icon.

3. Under “Add an IP or Range” you should enter the IP Address you wish to block.
4. Click on the “Add” button.

Here is an example:
Single IP Address: 192.168.0.1
Range: 192.168.0.1-192.168.0.40
Implied Range: 192.168.0.1-40
CIDR Format: 192.168.0.1/32
Implies 10.*.*.* — 192.