Yes. WP Security Ninja works with WordPress Multisite.
Each subsite uses one license seat. A network admin can manage licenses centrally, or each site admin can manage their own.
Install the plugin on a Multisite network
When you install on Multisite, you choose whether licensing is handled for the whole network or delegated to individual site admins.
If the network has 10 sites, you need a license that covers at least 10 websites. Each subsite counts as one website, whether you use subdomains or subdirectory URLs.
Common choices:
- Apply one license across all network sites (best when you own and run the whole network).
- Let each site admin activate their own license (or stay on free features) after the plugin is installed on the network.
When apply on all sites in the network is selected, the super-admin action applies to every site on the network, including sites created later.
To control individual subsites, clear that checkbox and pick the sites that should receive the license:
Network-level management
If you did not delegate activation to site admins, the network admin has an Account page. From there you can opt in, activate a license, remove a license, and related actions:
