Neutrope Quiet Shield

Neutrope Quiet Shield is a lightweight plugin designed to help WordPress site operators manage unwanted submissions in Contact Form 7 forms. It addresses the issue of spam and unsolicited sales messages overwhelming legitimate inquiries, particularly on sites where traditional security plugins may be too complex or resource-intensive.

The plugin offers several filtering mechanisms that can be combined and adjusted according to the site administrator’s needs. These include checks for the proportion of Japanese language in submissions, limits on the number of URLs included, detection of unusually rapid submission speeds, and customizable keyword blocking through NG word lists. Site operators can configure thresholds for each filter type and select which mechanisms to enable, allowing for tailored protection based on the specific spam patterns they encounter.

A notable feature is Quiet Mode, which processes or discards submissions identified as spam or sales messages without alerting the sender. Instead, the sender sees a standard success screen, minimizing disruption and reducing the likelihood of further spam attempts. All filtering and processing occur entirely within the site, with no external communication or data transmission involved, supporting privacy and data security.

Neutrope Quiet Shield keeps summary logs of filtering results, storing only a hashed version of the IP address and a summary of the judgment. The plugin does not retain message content, names, or email addresses, further prioritizing privacy. Administrators can review these logs to observe trends in unwanted submissions. Installation involves enabling the plugin on a WordPress site that already uses Contact Form 7 and configuring the desired filtering rules and thresholds. The free version of Neutrope Quiet Shield is available for download from WordPress.org.