1
CleanTalk Spam Protection Included
Multisite compatible, with per-site settings or a global access key for the network.
85feature score
WordPress CAPTCHA & Anti-Spam Plugins with Multisite support
Works across a WordPress multisite network. 5 of the 9 plugins we track include it.
2
hCaptcha for WordPress Included
Multisite support with settings sync across the network.
84feature score
3
Simple Cloudflare Turnstile Included
Readme states WordPress Multisite compatibility.
73feature score
4
CAPTCHA 4WP Included
Can be enabled network-wide or per site on multisite.
67feature score
5
Akismet Anti-spam Included
Works on multisite; the Business plan covers unlimited sites for networks.
43feature score