scanrub

Subnet Calculator

Calculate network details from an IP/CIDR notation. Get the network address, broadcast, usable host range, subnet mask, wildcard mask, and total hosts.

100% client-side - nothing is sent to any server
Need automated scanning?
ScanRub runs 25 security tools against any domain - with validated findings and fix guidance.
Try the scanner free
Weekly security research

New vulnerability playbooks, tool updates, and bug bounty insights - delivered to your inbox. No spam.

Unsubscribe anytime. We respect your inbox.
Press ⌘K to search×