Simple anti-spam module to prevent automatic spam from anonymous users.
Module adds for certain forms two new elements — checkbox "I'm not a spammer" and hidden checkbox "I'm a spammer". If user not checked first checkbox or checked second checkbox, form not submitted and display warning message.
- Block forms by stop words.
- Block forms by max text length.
- Block forms by number of links.
- Block forms by custom php code.
- Ban by IP after fail form submissions
Similar module — Honeypot.