Stop a lot of spambots from polluting your site by making visitors identify a random word displayed as an image before commenting and optionally before registering. You can customize the pool of words to display.
Features
- Toggle whether registered users need to enter the word
- Random font display
- No cookies required
- No JavaScript required
- Auto-generated audio for visually impaired users
- Easy-to-read
- No mapping of words from the code -- words are used once or removed after 24 hours
- Reminder of what was entered if you get the word wrong
- Selective blocking of trackbacks, pingbacks
- Easy to translate
- Compatible with caching plugins
Negatives
- Purposely no obscuring techniques so that the anti-spam word is easy to read
- The more people who use this plugin, the more motivation for spambots to target it
Requirements
- GD Library and FreeType Library (There's a diagnostic page to tell you whether you have them installed. If needed, just ask your web host to install them!)
- WordPress 3.2 or higher
Translations
Unzip all files to the folder custom-anti-spam in your plugins directory, so that the path is wp-content/plugins/custom-anti-spam/. Then activate the plugin via your WordPress admin section. The plugin should work directly "out of the box", but all settings can be customized in the Settings > Custom anti-spam page in your WordPress control panel. If you are upgrading from a previous release, de-activate that release first.