If you manage a website with cPanel, keeping unwanted traffic out is just as important as letting legitimate visitors in. Whether you are dealing with a malicious bot scraping your content, a brute-force attack on your login page, or just need to restrict admin access to specific IP addresses, cPanel’s IP Blocker tool gives you direct control over who can and cannot reach your site.
This guide walks through everything you need to know about blocking and allowing IP addresses in cPanel — from the basics of the IP Blocker interface to advanced use cases like blocking entire CIDR ranges and diagnosing false positives.