Preventing some specific IP addresses or a range of IP addresses from accessing your website is commonly used as a security measure to protect your site from unauthorized access, malicious activities, or unwanted traffic.

In hPanel → Websites, click on Manage next to the website in question. Then, on the sidebar search for CDN and open its settings:

Click on the arrow > to access the CDN settings of the preferred website:

Now, open the section Traffic blocking, click on Block IP address, or Add IP block, select the IPs, or IP ranges you want to block, and click on Block to confirm:

And that's it!

To remove an IP block, in hPanel → Websites, click on Manage next to the website in question. Then, on the sidebar search for CDN and open its settings:

Click on the arrow > to access the CDN settings of the preferred website:

Now, open the section Traffic blocking, click on the trash bin icon, and then click on Delete to confirm: