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Blocking an IP address or domain

Updated on 3 November 2026

You can block particular systems and users from accessing your site by blocking their IP address or domain.

To block an IP address:

  1. Sign in to cPanel
  2. Under the Security heading, click IP Blocker.
  3. Enter the IP address in the IP Address or Domain field.
  4. Click Add.

Note: you can give the IP addresses to block in the following formats:

  • 10.5.3.33 Single IP address
  • 10.5.3.3-10.5.3.40 Range
  • 10.5.3.5-40 Implied range
  • 10.5.3.3/32 CIDR format 10. Implies 10.*.*.*

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Blocking an IP address or domain · Atlas Hoster